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|---|---|---|---|---|---|---|---|---|---|---|---|
1krt57bdl | chemistry | biomolecules | vitamins-and-nucleic-acids | Thiamine and pyridoxine are also known respectively as : | [{"identifier": "A", "content": "Vitamin B<sub>2</sub> and Vitamin E"}, {"identifier": "B", "content": "Vitamin E and Vitamin B<sub>2</sub>"}, {"identifier": "C", "content": "Vitamin B<sub>6</sub> and Vitamin B<sub>2</sub>"}, {"identifier": "D", "content": "Vitamin B<sub>1</sub> and Vitamin B<sub>6</sub>"}] | ["D"] | null | Vitamine-B<sub>1</sub> is also known as Thiamine while Vitamin B-6 is known as Pyridoxine. | mcq | jee-main-2021-online-22th-july-evening-shift | 753 |
1krx884rr | chemistry | biomolecules | vitamins-and-nucleic-acids | Which one of the following is correct structure for cytosine? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734266690/exam_images/hftskwampmbdjudeowfv.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Biomolecules Question ... | ["C"] | null | The correct structure of cytosine<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263904/exam_images/jyittmyvlzwj557wmytf.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 25th July Evening Shift Chemistry - Biomolecules Question... | mcq | jee-main-2021-online-25th-july-evening-shift | 754 |
1krz1bm1o | chemistry | biomolecules | vitamins-and-nucleic-acids | <img src="data:image/png;base64,UklGRgwKAABXRUJQVlA4IAAKAAAQQQCdASoCAeYAPm02l0kkIyIhIbFJ+IANiWlu4W/RG/OH8J/yL8fO/T+4f039mOt58pezOyAd+38T/H/5//wf6z88v0b/d/zn+k+UPkA8zf91/kH8//1n5R+1P/Jfxb+X98dWn9QPYL9v/kn+g/kP9h/4fmJ/w/9A/Zz3T7kL/jfzP+lekh+lH8v82igN+WP9V/QP5h+0Hv0/4f8U/qn7Y+3H54/538g/v/yN/p9/qP41/Wv/D/gf//9Pns6/ZX2lv2EG... | [{"identifier": "A", "content": "Uracil"}, {"identifier": "B", "content": "Guanine"}, {"identifier": "C", "content": "Adenine"}, {"identifier": "D", "content": "Cytosine"}] | ["C"] | null | <p>Given structure of compound A is thymine, so its complementary
base will be adenine.</p>
<p>Adenine form hydrogen bonds with thymine and cytosine will form
hydrogen bond with guanine.
</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lfuy1m0u/326ae13e-0b69-405b-bc70-d745a2b17b79/83562de0-cee1-... | mcq | jee-main-2021-online-27th-july-morning-shift | 755 |
1ktece1cn | chemistry | biomolecules | vitamins-and-nucleic-acids | Out of following isomeric forms of uracil, which one is present in RNA? | [{"identifier": "A", "content": "<img src=\"https://res.cloudinary.com/dckxllbjy/image/upload/v1734263393/exam_images/asfadgjup4z7bvww9end.webp\" style=\"max-width: 100%;height: auto;display: block;margin: 0 auto;\" loading=\"lazy\" alt=\"JEE Main 2021 (Online) 27th August Morning Shift Chemistry - Biomolecules Questio... | ["D"] | null | Isomeric form of uracil present in RNA<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266456/exam_images/jjzdtc3bv9vv6wo9inqz.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 27th August Morning Shift Chemistry - Biomolecules Q... | mcq | jee-main-2021-online-27th-august-morning-shift | 756 |
1l549r7g9 | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Sugar moiety in DNA and RNA molecules respectively are</p> | [{"identifier": "A", "content": "$$\\beta$$-D-2-deoxyribose, $$\\beta$$-D-deoxyribose."}, {"identifier": "B", "content": "$$\\beta$$-D-2-deoxyribose, $$\\beta$$-D-ribose"}, {"identifier": "C", "content": "$$\\beta$$-D-ribose, $$\\beta$$-D-2-deoxyribose."}, {"identifier": "D", "content": "$$\\beta$$-D-deoxyribose, $$\\b... | ["B"] | null | DNA contains $$ \Rightarrow $$ $$\beta $$– D – 2 – deoxyribose
<br/><br/>RNA contains $$ \Rightarrow $$ $$\beta $$– D – ribose | mcq | jee-main-2022-online-29th-june-morning-shift | 757 |
1l58jz7v2 | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Which one of the following is a water soluble vitamin, that is not excreted easily?</p> | [{"identifier": "A", "content": "Vitamin B<sub>2</sub>"}, {"identifier": "B", "content": "Vitamin B<sub>1</sub>"}, {"identifier": "C", "content": "Vitamin B<sub>6</sub>"}, {"identifier": "D", "content": "Vitamin B<sub>12</sub>"}] | ["D"] | null | Vitamin B<sub>12</sub> is water soluble and not excreted easily. | mcq | jee-main-2022-online-26th-june-evening-shift | 759 |
1l5w6evbk | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>The sugar produced after complete hydrolysis of DNA is</p> | [{"identifier": "A", "content": "a pentose sugar."}, {"identifier": "B", "content": "a hexose sugar."}, {"identifier": "C", "content": "a polysaccharide."}, {"identifier": "D", "content": "a disaccharide."}] | ["A"] | null | DNA mainly consist of a nitrogeneous base, phosphate group and a pentose sugar.
<br/><br/>
So, hydrolysis of DNA produces a pentose sugar. | mcq | jee-main-2022-online-30th-june-morning-shift | 760 |
1ldo12mbi | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>All structures given below are of vitamin C. Most stable of them is :</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1ldob78i5/a55e3ea3-80d8-4b80-9c79-a8f96a03110f/0b1f97d0-a3a3-11ed-ba58-bbbbd3e496d9/file-1ldob78i6.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1ldob78i5/a55e3ea3-80d8-4b80-9c79-a8f96a03110f/0b1... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1leu5kppv/fde4ac0d-4491-4256-8569-2153e28fdae3/f670c830-baa5-11ed-905b-c3b697a31028/file-1leu5kppw.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1leu5kppv/fde4ac0d-4491-4256-8569-2153e28fdae3/f670c830-baa5-11ed-905b-c3b697a31028/fi... | mcq | jee-main-2023-online-1st-february-evening-shift | 761 |
1ldo39rmq | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Testosterone, which is a steroidal hormone, has the following structure.</p>
<p><img src="data:image/png;base64,UklGRngOAABXRUJQVlA4IGwOAADQzwCdASoAAzMCP4G612Y2Lb+nIdEo4/AwCWlu/BgVQEWiVyLzG4Xx83f7zrL7YriH+V7ZudXsx/Fv3v8/9PZ3T//+gR5/9N2pt+U/0H//4EP/0DBxu4DmeGXulC4tON3Aczwy90oXFpxtqNzjtIQTXHaQgmuO0hBNcdpCCa47QIMRu6TKL... | [] | null | 6 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1ldr81obw/d10a33f0-7120-407f-b91c-7d244157ba0a/0f0e0ac0-a53d-11ed-9c6f-c949bf5cccc2/file-1ldr81obx.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1ldr81obw/d10a33f0-7120-407f-b91c-7d244157ba0a/0f0e0ac0-a53d-11ed-9c6f-c949bf5cccc2/fi... | integer | jee-main-2023-online-1st-february-evening-shift | 762 |
1ldyhk5rm | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Uracil is a base present in RNA with the following structure. % of N in uracil is ___________</p>
<p><img src="data:image/png;base64,UklGRu4KAABXRUJQVlA4IOIKAADQwwCdASoJAgADP4HA3WU2MS4nIjSY4sAwCWlu8p9XgS/KyettUfP2l9NHTbz5gT+ejtD+Siomr/6MtbP1/4/4bOxDqTk7oh1Jyd0Q6k5O55Q0fXFafgmMGj64rT8Exg0fZ/g0fXFafgmMGj64rT8Exg0fZ/g0... | [] | null | 25 | Uracil is $\mathrm{C}_{4} \mathrm{H}_{4} \mathrm{~N}_{2} \mathrm{O}_{2}$
<br/><br/>
Mol. Wt of $\mathrm{C}_{4} \mathrm{H}_{4} \mathrm{~N}_{2} \mathrm{O}_{2}$ = 112 <br/><br/>
$\%$ by mass of $N=\frac{14 \times 2}{112} \times 100$
<br/><br/>
$$
=25 \%
$$ | integer | jee-main-2023-online-24th-january-morning-shift | 763 |
lgnzgm5p | chemistry | biomolecules | vitamins-and-nucleic-acids | Which is not true for arginine? | [{"identifier": "A", "content": "It has a fairly high melting point."}, {"identifier": "B", "content": "It is associated with more than one $\\mathrm{pK}_{\\mathrm{a}}$ values."}, {"identifier": "C", "content": "It has high solubility in benzene."}, {"identifier": "D", "content": "It is a crystalline solid. "}] | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lgrkncln/e55d2b89-9ff2-4a0a-82e1-ca339d60d119/fd7b65b0-e0d2-11ed-8b13-b3bb227d6f90/file-1lgrknclo.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lgrkncln/e55d2b89-9ff2-4a0a-82e1-ca339d60d119/fd7b65b0-e0d2-11ed-8b13-b3bb227d6f90/fi... | mcq | jee-main-2023-online-15th-april-morning-shift | 764 |
1lgp2jfq1 | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>The naturally occurring amino acid that contains only one basic functional group in its chemical structure is</p> | [{"identifier": "A", "content": "asparagine"}, {"identifier": "B", "content": "arginine"}, {"identifier": "C", "content": "histidine"}, {"identifier": "D", "content": "lysine"}] | ["A"] | null | Among the given options, arginine, histidine, and lysine are all basic amino acids because they contain amino (-NH<sub>2</sub>) and imino (-NH=) functional groups that can accept a proton (H<sup>+</sup>) to become positively charged.
<br/><br/>
Asparagine, on the other hand, contains an amide (-CONH<sub>2</sub>) funct... | mcq | jee-main-2023-online-13th-april-evening-shift | 765 |
1lgysfdkf | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Match List I with List II</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;bo... | [{"identifier": "A", "content": "A-III, B-IV, C-I, D-II"}, {"identifier": "B", "content": "A-IV, B-III, C-I, D-II"}, {"identifier": "C", "content": "A-II, B-I, C-IV, D-III"}, {"identifier": "D", "content": "A-III, B-I, C-IV, D-II"}] | ["D"] | null | <p>The one-letter code for each amino acid is as follows:</p>
<p>Glutamic Acid (A) is represented by the letter E (III).<br/><br/>
Glutamine (B) is represented by the letter Q (I).<br/><br/>
Tyrosine (C) is represented by the letter Y (IV).<br/><br/>
Tryptophan (D) is represented by the letter W (II).</p>
<p>These one-... | mcq | jee-main-2023-online-8th-april-evening-shift | 766 |
1lh32d6j3 | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Match List I with List II</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;bo... | [{"identifier": "A", "content": "(A) - IV, (B) - I, (C) - III, (D) - II"}, {"identifier": "B", "content": "(A) - III, (B) - I, (C) - II, (D) - IV"}, {"identifier": "C", "content": "(A) - IV, (B) - I, (C) - II, (D) - III"}, {"identifier": "D", "content": "(A) - I, (B) - III, (C) - IV, (D) - II"}] | ["C"] | null | <p>In protein chemistry, each amino acid is assigned a one-letter code to simplify notation. The matching for the given amino acids to their one-letter codes is as follows:</p>
<ul>
<li>Arginine (A) - R (IV)</li>
<li>Aspartic Acid (B) - D (I)</li>
<li>Asparagine (C) - N (II)</li>
<li>Alanine (D) - A (III)</li>
</ul>
<p... | mcq | jee-main-2023-online-6th-april-evening-shift | 767 |
lsbmnxvx | chemistry | biomolecules | vitamins-and-nucleic-acids | If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is : | [{"identifier": "A", "content": "CATTAGCT"}, {"identifier": "B", "content": "TACGAAGT"}, {"identifier": "C", "content": "ATGCGACT"}, {"identifier": "D", "content": "GTACTTAC"}] | ["B"] | null | DNA is made up of two strands that are complementary to each other. The base pairing rules state that adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Using these rules, we can determine the sequence of the complementary strand of the given DNA sequence ATGCTTCA.
Here's the pairing for the ... | mcq | jee-main-2024-online-1st-february-morning-shift | 768 |
jaoe38c1lsc4rx0p | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>Two nucleotides are joined together by a linkage known as :</p> | [{"identifier": "A", "content": "Phosphodiester linkage\n"}, {"identifier": "B", "content": "Glycosidic linkage\n"}, {"identifier": "C", "content": "Disulphide linkage\n"}, {"identifier": "D", "content": "Peptide linkage"}] | ["A"] | null | <p>Phosphodiester linkage</p>
<p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lscv4crp/cd09282d-d50f-43ce-9dd7-b22841787518/c876ed50-c64e-11ee-9d8b-f1be86a1b2f3/file-6y3zli1lscv4crq.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lscv4crp/cd09282d-d50f-43ce-9dd7-b... | mcq | jee-main-2024-online-27th-january-morning-shift | 769 |
jaoe38c1lsd9yf4l | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>From the vitamins $$\mathrm{A}, \mathrm{B}_1, \mathrm{~B}_6, \mathrm{~B}_{12}, \mathrm{C}, \mathrm{D}, \mathrm{E}$$ and $$\mathrm{K}$$, the number of vitamins that can be stored in our body is _________.</p> | [] | null | 5 | <p>Vitamins A, D, E, K and B$$_{12}$$ are stored in liver and adipose tissue.</p> | integer | jee-main-2024-online-31st-january-evening-shift | 770 |
1lsg843uz | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>The total number of correct statements, regarding the nucleic acids is _________.</p>
<p>A. RNA is regarded as the reserve of genetic information</p>
<p>B. DNA molecule self-duplicates during cell division</p>
<p>C. DNA synthesizes proteins in the cell</p>
<p>D. The message for the synthesis of particular proteins i... | [] | null | 3 | <p>A. RNA is regarded as the reserve of genetic information. (False)</p>
<p>B. DNA molecule self-duplicates during cell division. (True)</p>
<p>C. DNA synthesizes proteins in the cell. (False)</p>
<p>D. The message for the synthesis of particular proteins is present in DNA. (True)</p>
<p>E. Identical DNA strands are tr... | integer | jee-main-2024-online-30th-january-evening-shift | 771 |
luz2uu5m | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>The $$\mathrm{F}^{-}$$ ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.</p> | [{"identifier": "A", "content": "$$\\left[3\\left(\\mathrm{Ca}_3\\left(\\mathrm{PO}_4\\right)_2\\right) \\cdot \\mathrm{CaF}_2\\right]$$\n"}, {"identifier": "B", "content": "$$\\left[3\\left(\\mathrm{Ca}_3\\left(\\mathrm{PO}_4\\right)_2\\right) \\cdot \\mathrm{Ca}(\\mathrm{OH})_2\\right]$$\n"}, {"identifier": "C", "con... | ["A"] | null | <p>Hydroxyapatite : $$\left[3\left(\mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2\right) \cdot \mathrm{Ca}(\mathrm{OH})_2\right]$$</p>
<p>Fluoroapatite : $$\left[3\left(\mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2\right) \cdot \mathrm{CaF}_2\right]$$</p> | mcq | jee-main-2024-online-9th-april-morning-shift | 772 |
lvc58ep5 | chemistry | biomolecules | vitamins-and-nucleic-acids | <p>DNA molecule contains 4 bases whose structure are shown below. One of the structures is not correct, identify the incorrect base structure.</p> | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/1lvc3gscv/94244162-3886-468c-92c7-5664f7b042dd/48bc71f0-0147-11ef-9994-d5a6f8729fd1/file-1lvc3gscw.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/1lvc3gscv/94244162-3886-468c-92c7-5664f7b042dd/48b... | ["D"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lx1j9vov/3706743b-a317-4e8d-a4d5-c49e69b3eb33/ea540b00-2310-11ef-9133-d75aec91fe89/file-6y3zli1lx1j9vow.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lx1j9vov/3706743b-a317-4e8d-a4d5-c49e69b3eb33/ea540b00-2310-11ef-91... | mcq | jee-main-2024-online-6th-april-morning-shift | 773 |
4cdlCNiVegCDNUzm | chemistry | chemical-bonding-and-molecular-structure | back-bonding | The bond dissociation energy of B - F in BF<sub>3</sub> is 646 kJ mol<sup>-1</sup> whereas that of C - F in CF<sub>4</sub> is 515 kj mol<sup>-1</sup>. The correct reason for higher B - F bond dissociation energy as compared to that of C - F is | [{"identifier": "A", "content": "stronger $$\\sigma$$ bond between B and F in BF<sub>3</sub> as compared to that between C and F in CF<sub>4</sub>"}, {"identifier": "B", "content": "significant $$p\\pi - p\\pi$$ interaction between B and F in BF<sub>3</sub> whereas there is no possibility of such interaction between C ... | ["B"] | null | In BF<sub>3</sub>, B is sp<sup>2</sup>
hybridised and by Back Bonding method strong p$$\pi $$-p$$\pi $$ bond is created between filled p-orbital of F and vacant p-orbital of
B which leads to shortening of B–F bond length which results in higher bond dissociation energy of
the B–F bond. However in CF<sub>4</sub>, C doe... | mcq | aieee-2008 | 774 |
hIKAVgpODAw47kWU | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | The correct order of bond angles (smallest first) in H<sub>2</sub>S, NH<sub>3</sub>, BF<sub>3 </sub> and SiH<sub>4</sub> is | [{"identifier": "A", "content": "H<sub>2</sub>S < SiH<sub>4</sub> < NH<sub>3</sub> < BF<sub>3</sub> "}, {"identifier": "B", "content": "H<sub>2</sub>S < NH<sub>3</sub> < BF<sub>3</sub> < SiH<sub>4</sub>"}, {"identifier": "C", "content": "H<sub>2</sub>S < NH<sub>3</sub> < SiH<sub>4</sub> < BF<... | ["C"] | null | <b>1.</b> In H<sub>2</sub>S molecule, central atom S is a 3rd period element and according to Dragos rule, when a 3rd period or higher period element overlap with a small element whose electronegetivity is low then that over lapping cannot be a effective overlapping, because of higher size of 3rd or higher periods e... | mcq | aieee-2004 | 775 |
JwF7qXS0mwqWGfITfQaAz | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | The bond angle H - X - H is the greatest in the compound : | [{"identifier": "A", "content": "CH<sub>4</sub>"}, {"identifier": "B", "content": "NH<sub>3</sub>"}, {"identifier": "C", "content": "H<sub>2</sub>O"}, {"identifier": "D", "content": "PH<sub>3</sub>"}] | ["A"] | null | CH<sub>4</sub> - sp<sup>3</sup> hybridisation - Bond angle (109<sup>o</sup>28')
<br><br>NH<sub>3</sub> - sp<sup>3</sup> hybridisation - Bond angle ( 107.8<sup>o</sup>)
<br><br>H<sub>2</sub>O - sp<sup>3</sup> hybridisation - Bond angle ( 104.5<sup>o</sup>)
<br><br>PH<sub>3</sub> - No hybridisation - Bond angle ( 90<sup>... | mcq | jee-main-2016-online-10th-april-morning-slot | 776 |
InOV4zYIksaJMKRwThbM1 | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <img src="data:image/png;base64,UklGRogOAABXRUJQVlA4IHwOAAAwZACdASoAA7AAPm02mEgkIyKhI3QKEIANiWlu4XNBG/Of8n/3vtw/0P9w5wOVncn/J/up/O/ufuN7OeAX4g3p8AX1F/3niZ6kfiH2AP5D5zf8nxOvw3/V9gv+a/6P0Rfqr0f/W3sM9JYdphrIHOydjn+PjKG5oBGXd3d3d3dw1gL4kdBGPU7HP8hEREREREREREOd3OC8xb+8JT9Mfzwq/XcJ1kOkjxzLIiIiIhzu6MEywOpWKBBIp3VFJWs6vigiXj97... | [{"identifier": "A", "content": "$$\\eqalign{\n & (\\mathrm{I})\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,(\\mathrm{II}) \\cr \n & < 2\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\,\\, > 2 \\cr} $$"}, {"identifier": "B", "content": ... | ["A"] | null | Structure of hydrogen azide is
<br><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7u7y9cg/59d5fd4e-90bd-40d6-a67e-44e4d4638c4d/bdba1d00-3019-11ed-ab58-4f43f7f8c851/file-1l7u7y9ch.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7u7y9cg/59d5fd4e-90bd-40d6-a67e-44e4d4638c4d/bdb... | mcq | jee-main-2018-online-15th-april-morning-slot | 777 |
Q5p4VRyvV5jm4HGfqo7k9k2k5e068e6 | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | Chlorine reacts with hot and concentrated NaOH and produces compounds (X) and (Y). Compound
(X) gives white precipitate with silver nitrate solution. The average bond order between CI and O
atoms in (Y) is. | [] | null | 1.66to1.67 | 3Cl<sub>2</sub> + 6NaOH $$ \to $$ 5NaCl + NaClO<sub>3</sub> + 3H<sub>2</sub>O
<br><br>NaCl + AgNO<sub>3</sub> $$ \to $$ AgCl<sup>-</sup> $$ \downarrow $$ + NaNO<sub>3</sub>
<br><br>$$ \therefore $$ X = NaCl then Y = NaClO<sub>3</sub>
<br><br>Here in anion ClO<sub>3</sub><sup>-</sup> has bond between Cl and O atom.
<br>... | integer | jee-main-2020-online-7th-january-morning-slot | 778 |
upxFmVOuay2cBhvViHjgy2xukf9k2fko | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | The intermolecular potential energy for the
molecules A, B, C and D given below suggests
that :
<picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267082/exam_images/vhxznouask9fgfmemehc.webp"/><img src="data:image/png;base64,UklGRqQmAABXRUJQVlA4IJgmAAAwGAGdASqoAt... | [{"identifier": "A", "content": "A-B has the stiffest bond"}, {"identifier": "B", "content": "A-D has the shortest bond length"}, {"identifier": "C", "content": "A-A has the largest bond enthalpy"}, {"identifier": "D", "content": "D is more electronegative than other atoms"}] | ["A"] | null | From the given graph, potential energy of A-B molecule is minimum.
<br><br>Thus A-B bond is most stable as it
requires more energy to dissociate and have strongest bond amongst these.
<br><br>B = Most electronegative
<br><br>D = Least electronegative
<br><br>A - B = Shortest bond length
<br><br>A - B = Largest bond ent... | mcq | jee-main-2020-online-4th-september-morning-slot | 780 |
VSvDRTNVr5I8GcIzWg1kmhskjjf | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | Given below are two statements : one is labeled as Assertion A and the other is labelled as Reason R :<br/><br/>Assertion A : The H$$-$$O$$-$$H bond angle in water molecule is 104.5$$^\circ$$.<br/><br/>Reason R : The lone pair - lone pair repulsion of electrons is higher than the bond pair - bond pair repulsion.<br/><b... | [{"identifier": "A", "content": "Both A and R are true, and R is the correct explanation of A"}, {"identifier": "B", "content": "A is true but R is false"}, {"identifier": "C", "content": "A is false but R is true"}, {"identifier": "D", "content": "Both A and R are true, but R is not the correct explanation of A"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263756/exam_images/e4xxeb5kncycpevgt6jc.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 16th March Morning Shift Chemistry - Chemical Bonding & Molecular Structure Question 132 Engli... | mcq | jee-main-2021-online-16th-march-morning-shift | 781 |
1ldo0umhx | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <p>$$\mathrm{O}-\mathrm{O}$$ bond length in $$\mathrm{H}_{2} \mathrm{O}_{2}$$ is $$\underline{\mathrm{X}}$$ than the $$\mathrm{O}-\mathrm{O}$$ bond length in $$\mathrm{F}_{2} \mathrm{O}_{2}$$. The $$\mathrm{O}-\mathrm{H}$$ bond length in $$\mathrm{H}_{2} \mathrm{O}_{2}$$ is $$\underline{Y}$$ than that of the $$\mathrm{... | [{"identifier": "A", "content": "$$\\mathrm{X}$$ - shorter, $$\\mathrm{Y}$$ - longer"}, {"identifier": "B", "content": "$$\\mathrm{X}$$ - longer, $$\\mathrm{Y}$$ - shorter"}, {"identifier": "C", "content": "$$\\mathrm{X}$$ - shorter, $$\\mathrm{Y}$$ - shorter"}, {"identifier": "D", "content": "$$\\mathrm{X}$$ - longer,... | ["B"] | null | <style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sa... | mcq | jee-main-2023-online-1st-february-evening-shift | 782 |
1ldr41fo8 | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <p>For $$\mathrm{OF}_{2}$$ molecule consider the following :</p>
<p>A. Number of lone pairs on oxygen is 2 .</p>
<p>B. FOF angle is less than $$104.5^{\circ}$$.</p>
<p>C. Oxidation state of $$\mathrm{O}$$ is $$-2$$.</p>
<p>D. Molecule is bent '$$\mathrm{V}$$' shaped.</p>
<p>E. Molecular geometry is linear.</p>
<p>corre... | [{"identifier": "A", "content": "A, C, D only"}, {"identifier": "B", "content": "A, B, D only"}, {"identifier": "C", "content": "C, D, E only"}, {"identifier": "D", "content": "B, E, A only"}] | ["B"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lepyowjc/b75f9e2e-81b7-4b8b-ac25-d0f4582815f4/e87a5430-b857-11ed-8195-4f3c56fa1eb5/file-1lepyowkz.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lepyowjc/b75f9e2e-81b7-4b8b-ac25-d0f4582815f4/e87a5430-b857-11ed-8195-4f3c56fa1eb5... | mcq | jee-main-2023-online-30th-january-morning-shift | 783 |
1ldsrb3lq | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <p>The bond dissociation energy is highest for</p> | [{"identifier": "A", "content": "Cl$$_2$$"}, {"identifier": "B", "content": "I$$_2$$"}, {"identifier": "C", "content": "Br$$_2$$"}, {"identifier": "D", "content": "F$$_2$$"}] | ["A"] | null | Bond energy of $\mathrm{F}_{2}$ less than $\mathrm{Cl}_{2}$ due to lone pair lone pair repulsions.
<br/><br/>
Bond energy order $\mathrm{Cl}_{2}>\mathrm{Br}_{2}>\mathrm{F}_{2}>\mathrm{I}_{2}$ | mcq | jee-main-2023-online-29th-january-morning-shift | 784 |
1lgp2tgig | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <p>Given below are two statements :</p>
<p>Statement I : $$\mathrm{SO}_{2}$$ and $$\mathrm{H}_{2} \mathrm{O}$$ both possess V-shaped structure.</p>
<p>Statement II : The bond angle of $$\mathrm{SO}_{2}$$ is less than that of $$\mathrm{H}_{2} \mathrm{O}$$.</p>
<p>In the light of the above statements, choose the most app... | [{"identifier": "A", "content": "Both Statement I and Statement II are incorrect"}, {"identifier": "B", "content": "Both Statement I and Statement II are correct"}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect"}, {"identifier": "D", "content": "Statement I is incorrect but Statem... | ["C"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lgsm006a/ddbebe6c-5a07-4b21-b13c-30c1e7d3bc39/0f2e1c20-e165-11ed-95df-fb857d00bffe/file-1lgsm006b.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lgsm006a/ddbebe6c-5a07-4b21-b13c-30c1e7d3bc39/0f2e1c20-e165-11ed-95df-fb857d00bffe/fi... | mcq | jee-main-2023-online-13th-april-evening-shift | 785 |
1lsgyis0f | chemistry | chemical-bonding-and-molecular-structure | bond-parameters | <p>Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).</p>
<p>Assertion (A) : There is a considerable increase in covalent radius from $$\mathrm{N}$$ to $$\mathrm{P}$$. However from As to Bi only a small increase in covalent radius is observed.</p>
<p>Reason (R) : ... | [{"identifier": "A", "content": "(A) is false but (R) is true"}, {"identifier": "B", "content": "Both (A) and (R) are true and (R) is the correct explanation of (A)"}, {"identifier": "C", "content": "Both (A) and (R) are true but (R) is not the correct explanation of (A)"}, {"identifier": "D", "content": "(A) is true b... | ["C"] | null | <p>According to NCERT,</p>
<p>Statement-I : Factual data,</p>
<p>Statement-II is true.</p>
<p>But correct explanation is presence of completely filled $$d$$ and $$f$$-orbitals of heavier members</p> | mcq | jee-main-2024-online-30th-january-morning-shift | 786 |
aUOtRsLU7g18b1R8 | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | Which of the following compounds contain(s) no covalent bond(s)?
KCl, PH<sub>3</sub>, O<sub>2</sub>, B<sub>2</sub>H<sub>6</sub>, H<sub>2</sub>SO<sub>4</sub> | [{"identifier": "A", "content": "KCl, B<sub>2</sub>H<sub>6</sub>"}, {"identifier": "B", "content": "KCl, B<sub>2</sub>H<sub>6</sub>, PH<sub>3</sub>"}, {"identifier": "C", "content": "KCl, H<sub>2</sub>SO<sub>4</sub>"}, {"identifier": "D", "content": "KCl"}] | ["D"] | null | Here only KCl is ionic compound all other compound has covalent bond. | mcq | jee-main-2018-offline | 788 |
XWE0iO8fDLO3VWW534T2w | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | The covalent alkaline earth metal halide
(X = Cl, Br, I) is : | [{"identifier": "A", "content": "CaX<sub>2</sub>"}, {"identifier": "B", "content": "SrX<sub>2</sub>"}, {"identifier": "C", "content": "MgX<sub>2</sub>"}, {"identifier": "D", "content": "BeX<sub>2</sub>"}] | ["D"] | null | According to Fajan’s rule, when the size of cation is less then the
covalent character would be more for the cation.
<br><br>Since Be<sup>2+</sup> has minimum size
among given cation, therefore, BeX<sub>2</sub> would be
most covalent among given alkaline with metal
halides | mcq | jee-main-2019-online-8th-april-evening-slot | 789 |
1l6i4ejlq | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | <p>Arrange the following in increasing order of their covalent character.</p>
<p>A. $$\mathrm{CaF}_{2}$$</p>
<p>B. $$\mathrm{CaCl}_{2}$$</p>
<p>C. $$\mathrm{CaBr}_{2}$$</p>
<p>D. $$\mathrm{CaI}_{2}$$</p>
<p>Choose the correct answer from the options given below.</p> | [{"identifier": "A", "content": "B < A < C < D"}, {"identifier": "B", "content": "A < B < C < D"}, {"identifier": "C", "content": "A < B < D < C"}, {"identifier": "D", "content": "A < C < B < D"}] | ["B"] | null | From Fajan's rule, for a given metal ion, as the size of anion increases, polarizability of anion increases and hence covalent character of the given ionic compound increases.
<br/><br/>
Hence, the increasing order of covalent character is $\mathrm{CaF}_{2}<\mathrm{CaCl}_{2}<\mathrm{CaBr}_{2}<\mathrm{Cal}_{2}$ | mcq | jee-main-2022-online-26th-july-evening-shift | 790 |
1l6jkbg8k | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | <p>Given below are two statements.</p>
<p>Statement I: $$\mathrm{O}_{2}, \mathrm{Cu}^{2+}$$, and $$\mathrm{Fe}^{3+}$$ are weakly attracted by magnetic field and are magnetized in the same direction as magnetic field.</p>
<p>Statement II: $$\mathrm{NaCl}$$ and $$\mathrm{H}_{2} \mathrm{O}$$ are weakly magnetized in oppos... | [{"identifier": "A", "content": "Both Statement I and Statement II are correct."}, {"identifier": "B", "content": "Both Statement I and Statement II are incorrect."}, {"identifier": "C", "content": "Statement I is correct but Statement II is incorrect."}, {"identifier": "D", "content": "Statement I is incorrect but Sta... | ["A"] | null | $\mathrm{O}_{2}, \mathrm{Cu}^{2+}$ and $\mathrm{Fe}^{3+}$ have 2,1 and 5 unpaired electrons respectively, so these are the paramagnetic species. Hence, they are attracted by magnetic field.
<br/><br/>
$\mathrm{NaCl}$ and $\mathrm{H}_{2} \mathrm{O}$ are the diamagnetic species so they are repelled by the magnetic field. | mcq | jee-main-2022-online-27th-july-morning-shift | 791 |
1ldygderb | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | <p>Order of Covalent bond;</p>
<p>$$\mathrm{A.~KF > KI ; LiF > KF}$$</p>
<p>$$\mathrm{B.~KF < KI ; LiF > KF}$$</p>
<p>$$\mathrm{C.~SnCl_4 > SnCl_2 ; CuCl > NaCl}$$</p>
<p>$$\mathrm{D.~LiF > KF ; CuCl < NaCl}$$</p>
<p>$$\mathrm{E.~KF < KI ; CuCl > NaCl}$$</p>
<p>Choose the correct answer fr... | [{"identifier": "A", "content": "B, C only"}, {"identifier": "B", "content": "A, B only"}, {"identifier": "C", "content": "C, E only"}, {"identifier": "D", "content": "B, C, E only"}] | ["D"] | null | B is correct $\mathrm{KF}<\mathrm{KI}$; $\mathrm{LiF}>\mathrm{KF}$
<br/><br/>
$\mathrm{C}$ is correct $\underset{+4}{\mathrm{SnCl}_{4}}>\underset{+2}{\mathrm{SnCl}_{2}} ; \mathrm{CuCl}>\mathrm{NaCl}$
<br/><br/>
$\mathrm{E}$ is correct $\mathrm{KF}<\mathrm{KI}$; $\mathrm{CuCl}>\mathrm{NaCl}$ | mcq | jee-main-2023-online-24th-january-morning-shift | 792 |
lv7v49r8 | chemistry | chemical-bonding-and-molecular-structure | covalent-and-co-ordinate-bond | <p>Number of $$\sigma$$ and $$\pi$$ bonds present in ethylene molecule is respectively :</p> | [{"identifier": "A", "content": "3 and 1\n"}, {"identifier": "B", "content": "5 and 1\n"}, {"identifier": "C", "content": "4 and 1\n"}, {"identifier": "D", "content": "5 and 2"}] | ["B"] | null | <p>Let's analyze the bond structure in an ethylene molecule (C<sub>2</sub>H<sub>4</sub>) to determine the count of $$\sigma$$ and $$\pi$$ bonds.
</p>
<p>Ethylene consists of two carbon atoms double-bonded to each other, with each carbon atom also bonded to two hydrogen atoms. Each single bond is a $$\sigma$$ bond. Th... | mcq | jee-main-2024-online-5th-april-morning-shift | 793 |
JJFWyBvJ5UgeAmFi | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | Which one of the following pairs of molecules will have permanent dipole moments for both members | [{"identifier": "A", "content": "NO<sub>2</sub> and CO<sub>2</sub>"}, {"identifier": "B", "content": "NO<sub>2</sub> and O<sub>3</sub>"}, {"identifier": "C", "content": "SiF<sub>4</sub> abd CO<sub>2</sub>"}, {"identifier": "D", "content": "SiF<sub>4</sub> abd NO<sub>2</sub>"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266045/exam_images/z11v85ub097vvh76c2gn.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="AIEEE 2003 Chemistry - Chemical Bonding & Molecular Structure Question 220 English Explanation 1">
<br>Here $$\mu $... | mcq | aieee-2003 | 794 |
J4tsIqf7yGQjgt3luQ7k9k2k5dzd7pc | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | The dipole of CCl<sub>4</sub>, CHCl<sub>3</sub> and CH<sub>4</sub> are in the order : | [{"identifier": "A", "content": "CCl<sub>4</sub> < CH<sub>4</sub> < CHCl<sub>3</sub>"}, {"identifier": "B", "content": "CH<sub>4</sub> = CCl<sub>4</sub> < CHCl<sub>3</sub>\n"}, {"identifier": "C", "content": "CH<sub>4</sub> < CCl<sub>4</sub> < CHCl<sub>3</sub>"}, {"identifier": "D", "content": "CHCl<sub>... | ["B"] | null | CHCl<sub>3</sub> is polar while CH<sub>4</sub> and CCl<sub>4</sub> are nonpolar.
<br><br>So, dipole moment order is :
<br><br> CH<sub>4</sub> = CCl<sub>4</sub> < CHCl<sub>3</sub>
| mcq | jee-main-2020-online-7th-january-morning-slot | 795 |
1l59ri3lw | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Amongst BeF<sub>2</sub>, BF<sub>3</sub>, H<sub>2</sub>O, NH<sub>3</sub>, CCl<sub>4</sub> and HCl, the number of molecules with non-zero net dipole moment is ____________.</p> | [] | null | 3 | $\mathrm{BeF}_2, \mathrm{BF}_3$ and $\mathrm{CCl}_4 \Rightarrow \mu_{\mathrm{net}}=0$ <br/><br/>$\mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3$ and $\mathrm{HCl} \Rightarrow \mu_{\mathrm{net}} \neq 0$ | integer | jee-main-2022-online-25th-june-evening-shift | 796 |
1ldu0xek7 | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Statement I : Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre.</p>
<p>Statement II : The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.</p>
<p>In ... | [{"identifier": "A", "content": "Statement I is correct but Statement II is incorrect"}, {"identifier": "B", "content": "Statement I is incorrect but Statement II is correct"}, {"identifier": "C", "content": "Both Statement I and Statement II are correct"}, {"identifier": "D", "content": "Both Statement I and Statement... | ["B"] | null | The dipole moment is a vector quantity and is
depicted by an arrow with tail on the positive centre
and head pointing towards the negative centre. So,
Statement-I is incorrect.<br><br> The crossed arrow of the
dipole moment symbolizes the direction of the shift
of charges in the molecules. So, Statement-II is
correct.
... | mcq | jee-main-2023-online-25th-january-evening-shift | 799 |
lgnzt580 | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | Consider the following statements:
<br/><br/>
(A) NF<sub>3</sub> molecule has a trigonal planar structure.
<br/><br/>
(B) Bond length of $\mathrm{N}_{2}$ is shorter than $\mathrm{O}_{2}$.
<br/><br/>
(C) Isoelectronic molecules or ions have identical bond order.
<br/><br/>
(D) Dipole moment of $\mathrm{H}_{2}\mathrm{S}$... | [{"identifier": "A", "content": "(C) and (D) are correct"}, {"identifier": "B", "content": "(A) and (B) are correct"}, {"identifier": "C", "content": "(B) and (C) are correct"}, {"identifier": "D", "content": "(A) and (D) are correct\n"}] | ["C"] | null | The correct answer is (B) and (C).
<br/><br/>
(A) NF<sub>3</sub> molecule has a trigonal pyramidal structure, not a trigonal planar structure. Therefore, statement (A) is false.
<br/><br/>
(B) The bond length of $\mathrm{N}_{2}$ is shorter than that of $\mathrm{O}_{2}$ due to the smaller atomic radius of nitrogen compa... | mcq | jee-main-2023-online-15th-april-morning-shift | 800 |
jaoe38c1lsc5b7uk | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Choose the polar molecule from the following:</p> | [{"identifier": "A", "content": "$$\\mathrm{CCl}_4$$\n"}, {"identifier": "B", "content": "$$\\mathrm{CO}_2$$\n"}, {"identifier": "C", "content": "$$\\mathrm{CH}_2=\\mathrm{CH}_2$$\n"}, {"identifier": "D", "content": "$$\\mathrm{CHCl}_3$$"}] | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lscvbo4p/8a37a3ab-5c10-46d0-80cc-caf15a53ab27/93e7c4a0-c64f-11ee-9d8b-f1be86a1b2f3/file-6y3zli1lscvbo4q.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lscvbo4p/8a37a3ab-5c10-46d0-80cc-caf15a53ab27/93e7c4a0-c64f-11ee... | mcq | jee-main-2024-online-27th-january-morning-shift | 801 |
jaoe38c1lsda0qxg | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>A diatomic molecule has a dipole moment of $$1.2 \mathrm{~D}$$. If the bond distance is $$1 \mathrm{~A}^{\circ}$$, then fractional charge on each atom is _________ $$\times 10^{-1}$$ esu.</p>
<p>(Given $$1 \mathrm{~D}=10^{-18}$$ esucm)</p> | [] | null | 0 | <p>To find the fractional charge on each atom in a diatomic molecule, we can use the relationship between dipole moment (μ), charge (q), and distance (d):</p>
<p>$$ \mu = q \times d $$</p>
<p>Where:</p>
<ul>
<li>μ is the dipole moment.</li>
<br/><li>q is the magnitude of the charge on each atom.</li>
<br/><li>d is th... | integer | jee-main-2024-online-31st-january-evening-shift | 802 |
jaoe38c1lsfpfuqi | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>The total number of molecules with zero dipole moment among $$\mathrm{CH}_4, \mathrm{BF}_3, \mathrm{H}_2 \mathrm{O}, \mathrm{HF}, \mathrm{NH}_3, \mathrm{CO}_2$$ and $$\mathrm{SO}_2$$ is ________.</p> | [] | null | 3 | <p>Molecules with zero dipole moment $$=\mathrm{CO}_2, \mathrm{CH}_4, \mathrm{BF}_3$$</p> | integer | jee-main-2024-online-29th-january-evening-shift | 803 |
1lsg7fij3 | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Given below are two statements:</p>
<p>Statement - I: Since Fluorine is more electronegative than nitrogen, the net dipole moment of $$\mathrm{NF}_3$$ is greater than $$\mathrm{NH}_3$$.</p>
<p>Statement - II: In $$\mathrm{NH}_3$$, the orbital dipole due to lone pair and the dipole moment of $$\mathrm{NH}$$ bonds are... | [{"identifier": "A", "content": "Statement I is true but Statement II is false.\n"}, {"identifier": "B", "content": "Both Statement I and Statement II are true.\n"}, {"identifier": "C", "content": "Both Statement I and Statement II are false.\n"}, {"identifier": "D", "content": "Statement I is false but Statement II is... | ["C"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lspvjcem/17b02273-0610-4df1-827c-98d0774820d2/99c36ae0-cd76-11ee-9be1-85ca54b9efcb/file-6y3zli1lspvjcen.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/6y3zli1lspvjcem/17b02273-0610-4df1-827c-98d0774820d2/99c36ae0-cd76-11ee... | mcq | jee-main-2024-online-30th-january-evening-shift | 804 |
lv0vyr14 | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Which one of the following molecules has maximum dipole moment?</p> | [{"identifier": "A", "content": "$$\\mathrm{CH}_4$$\n"}, {"identifier": "B", "content": "$$\\mathrm{NF}_3$$\n"}, {"identifier": "C", "content": "$$\\mathrm{NH}_3$$\n"}, {"identifier": "D", "content": "$$\\mathrm{PF}_5$$"}] | ["C"] | null | <p>$$\mathrm{NH}_3 \text { have more dipole moment than } \mathrm{NF}_3 \text {. }$$</p> | mcq | jee-main-2024-online-4th-april-morning-shift | 805 |
lv2ertou | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Number of compounds / species from the following with non-zero dipole moment is _________.</p>
<p>$$\mathrm{BeCl}_2, \mathrm{BCl}_3, \mathrm{NF}_3, \mathrm{XeF}_4, \mathrm{CCl}_4, \mathrm{H}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{~S}, \mathrm{HBr}, \mathrm{CO}_2, \mathrm{H}_2, \mathrm{HCl}$$</p> | [] | null | 5 | <p>$$\mathrm{NF}_3, \mathrm{H}_2 \mathrm{O}, \mathrm{H}_2 \mathrm{S}, \mathrm{HBr}, \mathrm{HCl}$$ have non zero dipole moments.</p> | integer | jee-main-2024-online-4th-april-evening-shift | 806 |
lv9s2jkm | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).</p>
<p>Assertion (A) : $$\mathrm{NH}_3$$ and $$\mathrm{NF}_3$$ molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of $$\mathrm{NH}_3$$ is greater than that... | [{"identifier": "A", "content": "(A) is false but (R) is true"}, {"identifier": "B", "content": "(A) is true but (R) is false"}, {"identifier": "C", "content": "Both (A) and (R) are true but (R) is NOT the correct explanation of (A)"}, {"identifier": "D", "content": "Both (A) and (R) are true and (R) is the correct exp... | ["D"] | null | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/jaoe38c1lwf4zbgo/6dc6afa5-feb2-4a85-b646-70d4bbe32b1c/c683dd70-16bf-11ef-b04b-e5aed4adba7d/file-jaoe38c1lwf4zbgp.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/jaoe38c1lwf4zbgo/6dc6afa5-feb2-4a85-b646-70d4bbe32b1c/c683dd70-16bf-1... | mcq | jee-main-2024-online-5th-april-evening-shift | 807 |
lv9s2skh | chemistry | chemical-bonding-and-molecular-structure | dipole-moment | <p>Number of compounds from the following with zero dipole moment is _________.</p>
<p>$$\mathrm{HF}, \mathrm{H}_2, \mathrm{H}_2 \mathrm{~S}, \mathrm{CO}_2, \mathrm{NH}_3, \mathrm{BF}_3, \mathrm{CH}_4, \mathrm{CHCl}_3, \mathrm{SiF}_4, \mathrm{H}_2 \mathrm{O}, \mathrm{BeF}_2$$</p> | [] | null | 6 | <p><img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lwf77qu6/70b40b08-a3ad-446b-8d2d-507f3fcc063a/831fbbe0-16c8-11ef-8b7b-e581310b9cf7/file-1lwf77qu7.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lwf77qu6/70b40b08-a3ad-446b-8d2d-507f3fcc063a/831fbbe0-16c8-11ef-8b7b-e581310b9cf7... | integer | jee-main-2024-online-5th-april-evening-shift | 808 |
mpj6Sr9z39a6FjpW | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Hybridisation of underline atom changes in | [{"identifier": "A", "content": "$$\\underline {Al} {H_3}$$ changes to $$AlH_4^-$$"}, {"identifier": "B", "content": "$${H_2}\\underline O $$ changes to $$H_3O^+$$"}, {"identifier": "C", "content": "$$\\underline N {H_3}$$ changes to $$NH_4^+$$"}, {"identifier": "D", "content": "in all cases"}] | ["A"] | null | (a) $$\,\,\,$$ AlH<sub>3</sub> + H<sup>$$-$$</sup> $$ \to $$ AlH$$_4^ - $$
<br><br>Steric number of AlH<sub>3</sub> is = $${1 \over 2}$$ [3 + 3] = 3
<br><br>$$\therefore\,\,\,$$ AlH<sub>3</sub> is sp<sup>2</sup> hybridized.
<br><br>Steric number of AlH$$_4^ - $$ = $${1 \over 2}$$ [3 + 4 +1] = 4
<br><br>$$\therefore\... | mcq | aieee-2002 | 809 |
0Suq8v7ysInTEviK | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | In which of the following species is the underlined carbon having sp<sup>3</sup> hybridisation? | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1ltbs1idf/1791c77b-6d13-4c1c-afa8-b9d19d3f04a1/2cb52930-d982-11ee-bce9-1f4a70aeb3d5/file-6y3zli1ltbs1idg.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1ltbs1idf/1791c77b-6d13-4c1c-afa... | ["B"] | null | <br><br>(a) $$\,\,\,\,$$ <img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264975/exam_images/xcldci9y1mcguxtcjkdk.webp" loading="lazy" alt="AIEEE 2002 Chemistry - Chemical Bonding & Molecular Structure Question 192 English Explanation 1">
<br><br>(b) $$\,\,\,\,$$ <img class="q... | mcq | aieee-2002 | 810 |
gm5x4qpYa6KEna62 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | A square planar complex is formed by hybridisation of which atomic orbitals ? | [{"identifier": "A", "content": "s, p<sub>x</sub>, p<sub>y</sub>, d<sub>xy</sub>"}, {"identifier": "B", "content": "s, p<sub>x</sub>, p<sub>y</sub>, d<sub>x<sup>2</sup> - y<sup>2</sup></sub>"}, {"identifier": "C", "content": "s, p<sub>x</sub>, p<sub>y</sub>, d<sub>z<sup>2</sup></sub>"}, {"identifier": "D", "content": "... | ["B"] | null | Hybridization of square planar complex is dsp<sup>2</sup> .
<br><br><img class="question-image" src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265664/exam_images/cvgzlwaqivdtqrw22dgz.webp" loading="lazy" alt="AIEEE 2002 Chemistry - Chemical Bonding & Molecular Structure Question 190 English Explanatio... | mcq | aieee-2002 | 811 |
xcsm0nql60z3oXg7 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The pair of species having identical shapes for molecules of both species is | [{"identifier": "A", "content": "XeF<sub>2</sub>, CO<sub>2</sub>"}, {"identifier": "B", "content": "BF<sub>3</sub>, PCl<sub>3</sub>"}, {"identifier": "C", "content": "PF<sub>5</sub>, IF<sub>5</sub>"}, {"identifier": "D", "content": "CF<sub>4</sub>, SF<sub>4</sub>"}] | ["A"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264535/exam_images/h9htvtwrpabm0iitdah6.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="AIEEE 2003 Chemistry - Chemical Bonding & Molecular Structure Question 218 English Explanation 1">
<br><img src="ht... | mcq | aieee-2003 | 813 |
f9uqujHVgoME8wvM | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Which one of the following compounds has the smallest bond angle in its molecule? | [{"identifier": "A", "content": "OH<sub>2</sub>"}, {"identifier": "B", "content": "SH<sub>2</sub>"}, {"identifier": "C", "content": "NH<sub>3</sub>"}, {"identifier": "D", "content": "SO<sub>2</sub>"}] | ["B"] | null | (a) H<sub>2</sub>O is sp<sup>3</sup> hybridized, and oxygen atom has 2 bond pair and 2 lone pair. So the angle between two O $$-$$ H bond is 104.5<sup>o</sup>
<br><br>(b) In H<sub>2</sub>S molecule, central atom S is a 3rd period element and according to Dragos rule, when a 3rd period or higher... | mcq | aieee-2003 | 814 |
KxDI6IEJbr7AahXR | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The states of hybridization of boron and oxygen atoms in boric acid (H<sub>3</sub>BO<sub>3</sub>) are respectively | [{"identifier": "A", "content": "sp<sup>2</sup> and sp<sup>2</sup>\n "}, {"identifier": "B", "content": "sp<sup>3</sup> and sp<sup>3</sup>"}, {"identifier": "C", "content": "sp<sup>3</sup> and sp<sup>2</sup>"}, {"identifier": "D", "content": "sp<sup>2</sup> and sp<sup>3</sup>\n "}] | ["D"] | null | Structure of H<sub>3</sub>BO<sub>3</sub> is
<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263708/exam_images/bvr2mjvci5q3lgksjutl.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="AIEEE 2004 Chemistry - Chemical Bonding & Molecula... | mcq | aieee-2004 | 815 |
5urq95W4yMPfUd4T | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Which one of the following has the regular tetrahedral structure? <br/>
(Atomic nos : B = 5, S = 16, Ni = 28, Xe = 54) | [{"identifier": "A", "content": "XeF<sub>4</sub>"}, {"identifier": "B", "content": "[Ni(CN)<sub>4</sub>]<sup>2- </sup>"}, {"identifier": "C", "content": "$$BF_4^-$$"}, {"identifier": "D", "content": "SF<sub>4</sub>"}] | ["C"] | null | Regular Tetrahedral structure is possible in sp<sup>3</sup> hybridization where central atom has 4 bond pair and no lone pair.
<br><br>(a) XeF<sub>4</sub> is sp<sup>3</sup>d<sup>2</sup> hybridised and structure is square planar.
<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/up... | mcq | aieee-2004 | 816 |
UwJG6rOuj439QRBl | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The decreasing values of bond angles from NH<sub>3</sub> (106<sup>o</sup>) to SbH<sub>3</sub> (91<sup>o</sup>
) down group-15 of the periodic table is due to | [{"identifier": "A", "content": "increasing bp-bp repulsion"}, {"identifier": "B", "content": "increasing p-orbital character in sp<sup>3</sup>"}, {"identifier": "C", "content": "decreasing lp-bp repulsion"}, {"identifier": "D", "content": "decreasing electronegativity "}] | ["C"] | null | Nitrogen(N) atom is smaller in size so it's lone pair is relatively unstable. That is why repulsion between lone pairs present on nitrogen atom and bonded pairs of electrons is relatively high.
<br><br>But size of Sb is more so its lone pair is relatively stable. That is why it does not want to perticipate in bond pair... | mcq | aieee-2006 | 819 |
9GahDMGK1F3fXjfs | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The hybridization of orbitals of N atom in $$NO_3^-$$, $$NO_2^+$$ and $$NH_4^+$$ are respectively : | [{"identifier": "A", "content": "sp , sp<sup>2</sup>, sp<sup>3</sup>"}, {"identifier": "B", "content": "sp<sup>2</sup>, sp , sp<sup>3</sup>"}, {"identifier": "C", "content": "sp , sp<sup>3</sup>, sp<sup>2</sup>"}, {"identifier": "D", "content": "sp<sup>2</sup>, sp<sup>3</sup>, sp "}] | ["B"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266431/exam_images/ag1cw5twoviafdn5jb7p.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264986/exam_images/hpcqpggqujqxzx4kirek.webp"><img src="https://res.c... | mcq | aieee-2011 | 820 |
KElf6QK1sAhJKW8C | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The structure of IF<sub>7</sub> is : | [{"identifier": "A", "content": "trigonal bipyramid"}, {"identifier": "B", "content": "octahedral"}, {"identifier": "C", "content": "pentagonal bipyramid"}, {"identifier": "D", "content": "square pyramid"}] | ["C"] | null | The structure of IF<sub>7</sub> pentagonal bipyramidal having
sp<sup>3</sup>d<sup>3</sup>
hybridisation.
<br><picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264868/exam_images/pdoqynnk42zurygod6y3.webp"><source media="(max-width: 500px)" srcset="https://res.cl... | mcq | aieee-2011 | 821 |
ubhEmYxLSYmZXGqc | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | In which of the following pairs the two species are not isostructural ? | [{"identifier": "A", "content": "$$CO_3^{2-}$$ and $$NO_3^-$$"}, {"identifier": "B", "content": "$$PCl_4^{+}$$ and $$SiCl_4$$"}, {"identifier": "C", "content": "PF<sub>5</sub> and BrF<sub>5</sub>"}, {"identifier": "D", "content": "$$AlF_6^-$$ and $$SF_6$$"}] | ["C"] | null | PF<sub>5</sub>
$$ \Rightarrow $$ sp<sup>3</sup>d hybridized and shape is trigonal bipyramidal.
<br><br>BrF<sub>5</sub> $$ \Rightarrow $$ 5 bond pair and 1 lone pair present so sp<sup>3</sup>d<sup>2</sup> hybridized and shape is square pyramidal. | mcq | aieee-2012 | 822 |
vqAPe6uexarsrvlAJ7vIJ | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The group of molecules having identical shape is : | [{"identifier": "A", "content": "SF<sub>4</sub> , XeF<sub>4</sub> , CCl<sub>4</sub>"}, {"identifier": "B", "content": "ClF<sub>3</sub> , XeOF<sub>2</sub> , XeF$$_3^ + $$"}, {"identifier": "C", "content": "BF<sub>3</sub> , PCl<sub>3</sub> , XeO<sub>3</sub>"}, {"identifier": "D", "content": "PCl<sub>5</sub> , IF<sub>5</s... | ["B"] | null | H = $${1 \over 2}$$[VE + MA – c + a]
<br><br>ClF<sub>3</sub>
, H =
$${1 \over 2}$$
(7 + 3 – 0 + 0) = 5 (sp<sup>3</sup>d)
<br><br>XeOF<sub>2</sub>
, H = $${1 \over 2}$$(8 + 2 – 0 + 0) = 5 (sp<sup>3</sup>d)
<br><br>XeF<sub>3</sub><sup>+</sup>
, H =
$${1 \over 2}$$
(8 + 3 – 1 + 0 ) = 5 (sp<sup>3</sup>d)
<br><br>All mole... | mcq | jee-main-2016-online-9th-april-morning-slot | 823 |
l86jb8sy | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The species in which the $\mathrm{N}$ atom is in a state of $s p$ hybridization is :
| [{"identifier": "A", "content": "$\\mathrm{NO}_2^{+}$"}, {"identifier": "B", "content": "$\\mathrm{NO}_2^{-}$\n"}, {"identifier": "C", "content": "$\\mathrm{NO}_3^{-}$\n"}, {"identifier": "D", "content": "$\\mathrm{NO}_3^{-}$"}] | ["A"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l86jawng/e743a55b-f683-49b3-a376-bbafdf022476/89a767d0-36df-11ed-a9f0-f56124f74cf4/file-1l86jawnh.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l86jawng/e743a55b-f683-49b3-a376-bbafdf022476/89a767d0-36df-11ed-a9f0-f56124f74cf4/fi... | mcq | jee-main-2016-offline | 824 |
wJuktyJ7ppW8x7QwGSrdn | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | sp<sup>3</sup>d<sup>2</sup> hybridization is <b>not</b> displayed by :
| [{"identifier": "A", "content": "BrF<sub>5</sub>"}, {"identifier": "B", "content": "SF<sub>6</sub>"}, {"identifier": "C", "content": "[CrF<sub>6</sub>]<sup>3$$-$$</sup>"}, {"identifier": "D", "content": "PF<sub>5</sub>"}] | ["D"] | null | Hybridization (X) = $${1 \over 2}$$ [ VE + MA – c + a ]
<br><br>where, VE = No. of valence electrons of central atom
<br>MA = No. of monovalent atoms/groups surrounding the central
atom,
<br>c = Charge on the cation,
<br>a = Charge on the anion
<br><br>(A) [BrF<sub>5</sub>] : X = $${1 \over 2}$$[ 7 + 5 - 0 + 0] = 6 ... | mcq | jee-main-2017-online-8th-april-morning-slot | 825 |
RNVhXFNTgCG2USg2qReSo | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The group having triangular planar structures is :
| [{"identifier": "A", "content": "BF<sub>3</sub>, NF<sub>3</sub>, $$CO_3^{2 - }$$"}, {"identifier": "B", "content": "$$CO_3^{2 - }$$, $$NO_3^ - $$, SO<sub>3</sub>"}, {"identifier": "C", "content": "NH<sub>3</sub>, SO<sub>3</sub>, $$CO_3^{2 - }$$"}, {"identifier": "D", "content": "NCl<sub>3</sub>, BCl<sub>3</sub>, SO<su... | ["B"] | null | (A) BF<sub>3</sub> : sp<sup>2</sup> Hybridization : Triangular Planar
<br><br>NF<sub>3</sub> : sp<sup>3</sup> Hybridization : Tetrahedral
<br><br>$$CO_3^{2 - }$$ : sp<sup>2</sup> Hybridization : Triangular Planar
<br><br>(B) $$CO_3^{2 - }$$ : sp<sup>2</sup> Hybridization : Triangular Planar
<br><br>$$NO_3^ - $$ : sp<su... | mcq | jee-main-2017-online-9th-april-morning-slot | 826 |
Q1FlgwO0fiKugPkd7zZYg | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The <b>incorrect</b> geometry is represented by : | [{"identifier": "A", "content": "BF<sub>3</sub> - trigonal planar"}, {"identifier": "B", "content": "H<sub>2</sub>O - bent"}, {"identifier": "C", "content": "NF<sub>3</sub> - trigonal planar "}, {"identifier": "D", "content": "AsF<sub>5</sub> - trigonal bipyramidal "}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267404/exam_images/rffnwwheova2wzrcp1ed.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2018 (Online) 16th April Morning Slot Chemistry - Chemical Bonding & Molecular Structure Question 180 Engl... | mcq | jee-main-2018-online-16th-april-morning-slot | 827 |
mH7bhHWLOeDctdqbPfpd6 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Identify the pair in which the geometry of the species is $$T$$-shape and square - pyraidal, respectively : | [{"identifier": "A", "content": "ClF<sub>3</sub> and $$I{O_4}^ - $$ "}, {"identifier": "B", "content": "ICl<sub>2</sub><sup>-</sup> and ICl<sub>5</sub>"}, {"identifier": "C", "content": "XeOF<sub>2</sub> and XeOF<sub>4</sub>"}, {"identifier": "D", "content": "IO<sub>3</sub><sup>-</sup> and IO<sub>2</sub>F<sub>2</sub><s... | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263817/exam_images/yz2vnobmd4gdky6l6cp8.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Chemical Bonding & Molecular Structure Question 184 Engl... | mcq | jee-main-2018-online-15th-april-morning-slot | 829 |
RrllQEe4krGwgmj9 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Total number of lone pair of electrons in $${\rm I}_3^ - $$ ion is | [{"identifier": "A", "content": "3"}, {"identifier": "B", "content": "9"}, {"identifier": "C", "content": "6"}, {"identifier": "D", "content": "12"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264784/exam_images/ox9u4d9vskfpz0ze0tkp.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2018 (Offline) Chemistry - Chemical Bonding & Molecular Structure Question 187 English Explanation">
<br><... | mcq | jee-main-2018-offline | 830 |
JQtM1Iubq2JHnySXbobVJ | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The decreasing order of bond angles in BF<sub>3</sub>, NH<sub>3</sub>, PF<sub>3</sub> and I<sub>3</sub><sup>-</sup> is : | [{"identifier": "A", "content": "I<sub>3</sub><sup>-</sup> > NH<sub>3</sub> > PF<sub>3</sub> > BF<sub>3</sub>"}, {"identifier": "B", "content": "I<sub>3</sub><sup>-</sup> > BF<sub>3</sub> > NH<sub>3</sub> > PF<sub>3</sub>"}, {"identifier": "C", "content": "BF<sub>3</sub> > I<sub>3</sub><sup>-</sup>... | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267161/exam_images/u5mnojkykht9vo9kznqu.webp" style="max-width: 100%; height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Chemical Bonding & Molecular Structure Question 183 Engl... | mcq | jee-main-2018-online-15th-april-morning-slot | 831 |
xrxSs5Zo7exG8RTfiTO76 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The ion that has sp<sup>3</sup>d<sup>2</sup> hybridization for the
central atom, is : | [{"identifier": "A", "content": "[ICl<sub>2</sub>]<sup>-</sup>"}, {"identifier": "B", "content": "[ICl<sub>4</sub>]<sup>-</sup>"}, {"identifier": "C", "content": "[IF<sub>6</sub>]<sup>-</sup>"}, {"identifier": "D", "content": "[BrF<sub>2</sub>]<sup>-</sup>"}] | ["B"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266883/exam_images/rdp8joexq2x1okn4mokl.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263950/exam_images/siqh94apkvnbynd6mu74.webp"><img src="https://res.c... | mcq | jee-main-2019-online-8th-april-evening-slot | 833 |
oAa6YvGMfJQ4vKQf77p3L | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The correct statement about ICl<sub>5</sub> and $$ICl_4^-$$ is | [{"identifier": "A", "content": "ICl<sub>5</sub> is square pyramidal and $$ICl_4^-$$ is square\nplanar."}, {"identifier": "B", "content": "ICl<sub>5</sub> is trigonal bipyramidal and is\ntetrahedral."}, {"identifier": "C", "content": "ICl<sub>5</sub> is square pyramidal and $$ICl_4^-$$ is\ntetrahedral"}, {"identifier"... | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263377/exam_images/bbz8sl4mqz6lwrqbmndf.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264597/exam_images/ugtmhdptrsxg6qlk5vo1.webp"><img src="https://res.c... | mcq | jee-main-2019-online-8th-april-evening-slot | 834 |
vLMXNDzSRUPPkXYgDM3rsa0w2w9jwwe7xj7 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The oxoacid of sulphur that does not contain bond between sulphur atoms is | [{"identifier": "A", "content": "H<sub>2</sub>S<sub>2</sub>O<sub>7</sub>"}, {"identifier": "B", "content": "H<sub>2</sub>S<sub>2</sub>O<sub>3</sub>"}, {"identifier": "C", "content": "H<sub>2</sub>S<sub>4</sub>O<sub>6</sub>"}, {"identifier": "D", "content": "H<sub>2</sub>S<sub>2</sub>O<sub>4</sub>"}] | ["A"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263301/exam_images/rs4lzjuqxatk4vmfb6o9.webp"><source media="(max-width: 500px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264283/exam_images/gyoazye20bmyt1qyabck.webp"><source media="(max-wid... | mcq | jee-main-2019-online-10th-april-morning-slot | 835 |
CZw8iRqaJAkptjk3dB3rsa0w2w9jx56xgdk | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The correct statement among the following is : | [{"identifier": "A", "content": "(SiH<sub>3</sub>)<sub>3</sub>N is planar and more basic than (CH<sub>3</sub>)<sub>3</sub>N"}, {"identifier": "B", "content": "(SiH<sub>3</sub>)<sub>3</sub>N is pyramidal and more basic than (CH<sub>3</sub>)<sub>3</sub>N"}, {"identifier": "C", "content": "(SiH<sub>3</sub>)<sub>3</sub>N i... | ["D"] | null | <picture><source media="(max-width: 320px)" srcset="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264376/exam_images/obdcfybfvcetetsqaz23.webp"><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734266171/exam_images/sqvqhnwdqovtcwtrkaok.webp" style="max-width: 100%;height: auto;display: block;margi... | mcq | jee-main-2019-online-12th-april-morning-slot | 836 |
qq20iRhwJH3Mt3t8PXjgy2xukfoup9d3 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The compound that has the largest H–M–H bond angle (M = N, O, S, C) is : | [{"identifier": "A", "content": "CH<sub>4</sub>"}, {"identifier": "B", "content": "H<sub>2</sub>S"}, {"identifier": "C", "content": "NH<sub>3</sub>"}, {"identifier": "D", "content": "H<sub>2</sub>O"}] | ["A"] | null | CH<sub>4</sub> - Bond angle = 109<sup>o</sup>28'
<br><br>H<sub>2</sub>S - Bond angle = 92<sup>o</sup>
<br><br>NH<sub>3</sub> - Bond angle = 107<sup>o</sup>
<br><br>H<sub>2</sub>O - Bond angle = 104<sup>o</sup>5' | mcq | jee-main-2020-online-5th-september-evening-slot | 837 |
9fIRZYzuHw4D3nSNnBjgy2xukfjadluh | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The structure of PCl<sub>5</sub>
in the solid state is : | [{"identifier": "A", "content": "square pyramidal"}, {"identifier": "B", "content": "tetrahedral [PCl<sub>4</sub>]<sup>+</sup> and octahedral [PCl<sub>6</sub>]<sup>\u2013</sup>"}, {"identifier": "C", "content": "square planar [PCl<sub>4</sub>]<sup>+</sup> and octahedral [PCl<sub>6</sub>]<sup>\u2013</sup>"}, {"identifie... | ["B"] | null | In solid state PCl<sub>5</sub>
exist in Ionpair i.e. [PCl<sub>4</sub>]
<sup>+</sup> and [PCl<sub>6</sub>]
<sup>–</sup>
<br><br>[PCl<sub>4</sub>]<sup>+</sup> is tetrahedral.
<br>[PCl<sub>6</sub>]<sup>–</sup> is octahedral. | mcq | jee-main-2020-online-5th-september-morning-slot | 838 |
A0YqhXuA1n1m3q3G9Ejgy2xukfcd054c | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The reaction in which the hybridisation of the
underlined atom is affected is : | [{"identifier": "A", "content": "<img src=\"https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1ltbs83fh/8f320a03-c0e9-4d80-81c2-0ae6f37fdb4a/e3d420d0-d982-11ee-bce9-1f4a70aeb3d5/file-6y3zli1ltbs83fi.png?format=png\" data-orsrc=\"https://app-content.cdn.examgoal.net/image/6y3zli1ltbs83fh/8f320a03-c0e9-4d80-81c... | ["A"] | null | To determine the option in which the hybridisation of the underlined atom is affected, we need to look at each reaction and predict the changes in hybridisation that might be occuring with the reactants and products.
<p>Option A:</p>
<p>In the reaction $$ \underline {Xe}F_4 + SbF_5 \to $$, xenon tetrafluoride (XeF<sub... | mcq | jee-main-2020-online-4th-september-evening-slot | 839 |
WFXn6ZDj7Ne3LISNMWjgy2xukeyfkp6d | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The molecular geometry of SF<sub>6</sub> is octahedral.
What is the geometry of SF<sub>4</sub> (including lone
pair(s) of electrons, if any)? | [{"identifier": "A", "content": "Tetrahedral"}, {"identifier": "B", "content": "Trigonal bipyramidal"}, {"identifier": "C", "content": "Square planar"}, {"identifier": "D", "content": "Pyramidal"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734263360/exam_images/hzqviod1jrllko8vzhxn.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2020 (Online) 2nd September Evening Slot Chemistry - Chemical Bonding & Molecular Structure Question 149 Eng... | mcq | jee-main-2020-online-2nd-september-evening-slot | 840 |
m9nI60z407ispZxrApjgy2xukeyg5mny | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The shape / structure of [XeF<sub>5</sub>]<sup>–</sup> and XeO<sub>3</sub>F<sub>2</sub>,
respectively, are | [{"identifier": "A", "content": "Pentagonal planar and trigonal bipyramidal"}, {"identifier": "B", "content": "Trigonal bipyramidal and pentagonal\nplanar"}, {"identifier": "C", "content": "Octahedral and square pyramidal"}, {"identifier": "D", "content": "Trigonal bipyramidal and trigonal\nbipyramidal"}] | ["A"] | null | [XeF<sub>5</sub>]<sup>–</sup> $$ \to $$ 5BP + 2LP $$ \to $$ sp<sup>3</sup>d<sup>3</sup> hybridisation $$ \to $$ Pentagonal planar
<br><br>XeO<sub>3</sub>F<sub>2</sub>
$$ \to $$ 5BP + 0LP $$ \to $$ sp<sup>3</sup>d hybridisation $$ \to $$ Trigonal bipyramidal | mcq | jee-main-2020-online-2nd-september-evening-slot | 842 |
EH7XWeAT0VLMyVxT5e7k9k2k5llkutr | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The number of sp<sup>2</sup> hybrid orbitals in a molecule
of benzene is : | [{"identifier": "A", "content": "24"}, {"identifier": "B", "content": "12"}, {"identifier": "C", "content": "6"}, {"identifier": "D", "content": "18"}] | ["D"] | null | Each carbon atom is sp<sup>2</sup> hybrid
<br><br>$$ \therefore $$ 3 sp<sup>2</sup> hybrid orbitals are formed by each
carbon atom
<br><br>Total sp<sup>2</sup> orbitals = 6 × 3 = 18 | mcq | jee-main-2020-online-9th-january-evening-slot | 843 |
eAwLd70abt7Dh4fFYm1kmj7ywbn | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is : | [{"identifier": "A", "content": "trigonal pyramidal"}, {"identifier": "B", "content": "T-shaped"}, {"identifier": "C", "content": "see-saw"}, {"identifier": "D", "content": "planar triangular"}] | ["B"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734267475/exam_images/ikyy2xvsehf2rnp50132.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Chemical Bonding & Molecular Structure Question 131 Engli... | mcq | jee-main-2021-online-17th-march-morning-shift | 847 |
bStxnIbOS1q0TO4EeC1kmki78mh | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Amongst the following, the linear species is : | [{"identifier": "A", "content": "O<sub>3</sub>"}, {"identifier": "B", "content": "Cl<sub>2</sub>O"}, {"identifier": "C", "content": "N$$_3^ - $$"}, {"identifier": "D", "content": "NO<sub>2</sub>"}] | ["C"] | null | <img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734264965/exam_images/ox4owl5r7abrp6o3rhe7.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 130 Engli... | mcq | jee-main-2021-online-17th-march-evening-shift | 848 |
xzNUatmHPwWdaKZYvy1kmm1w3ue | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The number of species below that have two lone pairs of electrons in their central atom is _________. (Round off to the Nearest Integer).<br/><br/>SF<sub>4</sub>, BF$$_4^ - $$, ClF<sub>3</sub>, AsF<sub>3</sub>, PCl<sub>5</sub>, BrF<sub>5</sub>, XeF<sub>4</sub>, SF<sub>6</sub> | [] | null | 2 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1kxpyy0y2/1d70fcec-a606-45a3-9dc8-dd4b5b57635c/38b07aa0-67c9-11ec-876a-c595023c9bc7/file-1kxpyy0y3.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1kxpyy0y2/1d70fcec-a606-45a3-9dc8-dd4b5b57635c/38b07aa0-67c9-11ec-876a-c595023c9bc7/fi... | integer | jee-main-2021-online-18th-march-evening-shift | 849 |
1krq6e1ck | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The number of lone pairs of electrons on the central I atom in I$$_3^ - $$ is ____________. | [] | null | 3 | <p>Shape of I<sub>3</sub><sup>-</sup> is :</p>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l2piubu4/f87a8e33-73a3-474a-95be-c3971c8e1552/54b18ac0-ca87-11ec-ab2b-7960e659c3b6/file-1l2piubu5.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l2piubu4/f87a8e33-73a3-474a-95be-c3971... | integer | jee-main-2021-online-20th-july-morning-shift | 850 |
1krriq8sk | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | The hybridisations of the atomic orbitals of nitrogen in NO$$_2^ - $$, NO$$_2^ + $$ and NH$$_4^ + $$ respectively are. | [{"identifier": "A", "content": "sp<sup>3</sup>, sp<sup>2</sup> and sp"}, {"identifier": "B", "content": "sp, sp<sup>2</sup> and sp<sup>3</sup>"}, {"identifier": "C", "content": "sp<sup>3</sup>, sp and sp<sup>2</sup>"}, {"identifier": "D", "content": "sp<sup>2</sup>, sp and sp<sup>3</sup>"}] | ["D"] | null | Hybridisation = Number of sigma bonds + number of lone pair of electrons + number of coordinate bond.<br><br>For $$NO_2^ - $$ hybridisation = 2 sigma NO bonds + 1 lone pair on N = 3; so $$NO_2^ - $$ is sp<sup>2</sup>-hybridised.<br><br> <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l2pl7aq0/65e1e218-... | mcq | jee-main-2021-online-20th-july-evening-shift | 851 |
1krt46woa | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Match List-I with List-II :<br/><br/><table>
<thead>
<tr>
<th></th>
<th>List-I<br/>(Species)</th>
<th></th>
<th>List-II<br/>(Hybrid Orbitals)</th>
</tr>
</thead>
<tbody>
<tr>
<td>(a)</td>
<td>$$S{F_4}$$</td>
<td>(i)</td>
<td>$$s{p^3}{d^2}$$</td>
</tr>
<tr>
<td>(b)</td>
<td>$$I{F_5}$$</td>
<td>(ii)</td>
<td>$${d^2}s{p^3... | [{"identifier": "A", "content": "(a)-(i), (b)-(ii), (c)-(v) and (d)-(iii)"}, {"identifier": "B", "content": "(a)-(ii), (b)-(i), (c)-(iv) and (d)-(v)"}, {"identifier": "C", "content": "(a)-(iii), (b)-(i), (c)-(v) and (d)-(iv)"}, {"identifier": "D", "content": "(a)-(iv), (b)-(iii), (c)-(ii) and (d)-(v)"}] | ["C"] | null | (a) SF<sub>4</sub> - sp<sup>3</sup>d hybridization<br><br>(b) IF<sub>5</sub> - sp<sup>3</sup>d<sup>2</sup> hybridization<br><br>(c) NO$$_2^ + $$ - sp hybridization<br><br>(d) NH$$_4^ + $$ - sp<sup>3</sup> hybridization | mcq | jee-main-2021-online-22th-july-evening-shift | 852 |
1ktb5pthc | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | AB<sub>3</sub> is an interhalogen T-shaped molecule. The number of lone pairs of electrons on A is __________. (Integer answer) | [] | null | 2 | T-shaped molecule means 3 sigma bond and 2 lone pairs of electron on central atom.<br><br><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265831/exam_images/osuebnrkekbw52or2jrs.webp" style="max-width: 100%;height: auto;display: block;margin: 0 auto;" loading="lazy" alt="JEE Main 2021 (Online) 26th Aug... | integer | jee-main-2021-online-26th-august-morning-shift | 853 |
1kte9zt2x | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Match List - I with List - II :<br/><br/><img src="data:image/png;base64,UklGRrAgAABXRUJQVlA4IKQgAACwmwCdASp3AuoAPm02l0ikIyIhI5S5+IANiWlu/HyZjutQy/0a/jv4yeY79H/qP9Q/YPz9/Dfln63/ZP2X/u3/s9ob+l/qXT5f0n85/qvsn/Kvq/9r/if9c/4X9f/db3q/uX8q/pP96/rvo37+/4X+ffw73BfTn95/h/9T/6H+D9PP+n/lf8z71euX+z/qvsBe6/zf+//yT+t/97+y+dh/P/x3+of... | [{"identifier": "A", "content": "(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)"}, {"identifier": "B", "content": "(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)"}, {"identifier": "C", "content": "(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)"}, {"identifier": "D", "content": "(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)"}] | ["D"] | null | <table style="width:100%">
<thead>
<tr>
<th>Species<br></th>
<th>(Number of lone pairs of <br><br>electrons on the central atom)</th>
</tr>
</thead>
<tbody>
<tr>
<td>$$Xe{F_2}$$</td>
<td><img src="https://res.cloudinary.com/dckxllbjy/image/upload/v1734265079/exam_images/rcq352tggid48hvq03yf.webp" ... | mcq | jee-main-2021-online-27th-august-morning-shift | 854 |
1l54y1m1n | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Consider the species CH<sub>4</sub>, NH$$_4^ + $$ and BH$$_4^ - $$. Choose the correct option with respect to the these species.</p> | [{"identifier": "A", "content": "They are isoelectronic and only two have tetrahedral structures."}, {"identifier": "B", "content": "They are isoelectronic and all have tetrahedral structures."}, {"identifier": "C", "content": "Only two are isoelectronic and all have tetrahedral structures."}, {"identifier": "D", "cont... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l97wmvs0/61a9048e-4f47-448d-a6f9-c21ca939ed1e/ad654600-4b6c-11ed-9399-cda4ba1d6994/file-1l97wmvs1.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l97wmvs0/61a9048e-4f47-448d-a6f9-c21ca939ed1e/ad654600-4b6c-11ed-9399-cda4ba1d6994/fi... | mcq | jee-main-2022-online-29th-june-evening-shift | 856 |
1l55mwdtf | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>In the structure of SF<sub>4</sub>, the lone pair of electrons on S is in.</p> | [{"identifier": "A", "content": "equatorial position and there are two lone pair - bond pair repulsions at 90$$^\\circ$$."}, {"identifier": "B", "content": "equatorial position and there are three lone pair - bond pair repulsions at 90$$^\\circ$$."}, {"identifier": "C", "content": "axial position and there are three lo... | ["A"] | null | SF<sub>4</sub> → sp<sup>3</sup>d hybridisation.<br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l5iu8g2m/f6e3a0e9-18f5-4382-97a8-c36fd2d57935/0b4e00d0-023f-11ed-9915-b142ef5d751a/file-1l5iu8g2n.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l5iu8g2m/f6e3a0e9-18f5-4382-9... | mcq | jee-main-2022-online-28th-june-evening-shift | 858 |
1l56bfg52 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>The hybridization of P exhibited in PF<sub>5</sub> is sp<sup>x</sup>d<sup>y</sup>. The value of y is __________.</p> | [] | null | 1 | $\mathrm{PF}_5 \Rightarrow \mathrm{sp}^3 \mathrm{~d}$ hybridisation
<br/><br/>(5 sigma bonds, zero lone pair on central atom)
<br/><br/>Value of $y=1$ | integer | jee-main-2022-online-28th-june-morning-shift | 859 |
1l56wr85r | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Identify the incorrect statement for PCl<sub>5</sub> from the following.</p> | [{"identifier": "A", "content": "In this molecule, orbitals of phosphorous are assumed to undergo sp<sup>3</sup>d hybridization."}, {"identifier": "B", "content": "The geometry of PCl<sub>5</sub> is trigonal bipyramidal."}, {"identifier": "C", "content": "PCl<sub>5</sub> has two axial bonds stronger than three equatori... | ["C"] | null | <b>PCl<sub>5</sub></b><br><br>
<img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l5jkmy8x/8796e7cd-77d0-4f27-bcbb-1f9449bc2e5a/4c07f510-02a6-11ed-b0f0-b1d5b36f6c01/file-1l5jkmy8y.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l5jkmy8x/8796e7cd-77d0-4f27-bcbb-1f9449bc2e5a/4c07f510... | mcq | jee-main-2022-online-27th-june-evening-shift | 860 |
1l57r9zwv | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Based upon VSEPR theory, match the shape (geometry) of the molecules in List-I with the molecules in List-II and select the most appropriate option.</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-s... | [{"identifier": "A", "content": "(A) - (I), (B) - (II), (C) - (III), (D) - (IV)"}, {"identifier": "B", "content": "(A) - (III), (B) - (IV), (C) - (I), (D) - (II)"}, {"identifier": "C", "content": "(A) - (III), (B) - (IV), (C) - (I), (D) - (I)"}, {"identifier": "D", "content": "(A) - (IV), (B) - (III), (C) - (I), (D) - ... | ["B"] | null | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l5jlr69n/5cc75343-17c1-431f-bb06-5f551c4c042b/aa9794b0-02aa-11ed-9031-556e2cf7e851/file-1l5jlr69o.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l5jlr69n/5cc75343-17c1-431f-bb06-5f551c4c042b/aa9794b0-02aa-11ed-9031-556e2cf7e851/fi... | mcq | jee-main-2022-online-27th-june-morning-shift | 861 |
1l58k33jj | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Amongst SF<sub>4</sub>, XeF<sub>4</sub>, CF<sub>4</sub> and H<sub>2</sub>O, the number of species with two lone pairs of electrons is _____________.</p> | [] | null | 1 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lc3z50ks/35bf580e-a9f8-46ae-bd1a-4ecbcea03479/fb76dfb0-84a7-11ed-9e2c-bf48676ab5eb/file-1lc3z50kt.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lc3z50ks/35bf580e-a9f8-46ae-bd1a-4ecbcea03479/fb76dfb0-84a7-11ed-9e2c-bf48676ab5eb/fi... | integer | jee-main-2022-online-26th-june-evening-shift | 862 |
1l6f63903 | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Match List I with List II:</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;b... | [{"identifier": "A", "content": "A-II, B-I, C-IV, D-III"}, {"identifier": "B", "content": "A-II, B-IV, C-III, D-I"}, {"identifier": "C", "content": "A-IV, B-II, C-III, D-I"}, {"identifier": "D", "content": "A-IV, B-II, C-I, D-III"}] | ["A"] | null | $$\mathrm{XeO}_{3}-s p^{3}$$, Pyramidal
<br/><br/>
$$\mathrm{XeF}_{2}-s p^{3} d$$, linear
<br/><br/>
$$\mathrm{XeOF}_{4}-s p^{3} d^{2}$$, Square Pyramidal
<br/><br/>
$$\mathrm{XeF}_{6}-s p^{3} d^{3}$$, distorted octahedral | mcq | jee-main-2022-online-25th-july-evening-shift | 864 |
1l6f7udhr | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>The sum of number of lone pairs of electrons present on the central atoms of XeO<sub>3</sub>, XeOF<sub>4</sub> and XeF<sub>6</sub>, is ______________</p> | [] | null | 3 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7p0kshw/3dd46c9b-e1c2-4526-8f29-bf0b442bddd1/fc0ad750-2d3c-11ed-b59b-c52a043bb9dc/file-1l7p0kshx.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7p0kshw/3dd46c9b-e1c2-4526-8f29-bf0b442bddd1/fc0ad750-2d3c-11ed-b59b-c52a043bb9dc/fi... | integer | jee-main-2022-online-25th-july-evening-shift | 865 |
1l6gp10zq | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Match List-I with List-II :</p>
<p><style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
.tg th{border-color:black;border-style:solid;... | [{"identifier": "A", "content": "$$(\\mathrm{A})-(\\mathrm{I}),(\\mathrm{B})-(\\mathrm{II}),(\\mathrm{C})-(\\mathrm{III}),(\\mathrm{D})-(\\mathrm{IV})$$"}, {"identifier": "B", "content": "$$(\\mathrm{A})-(\\mathrm{IV}),(\\mathrm{B})-(\\mathrm{III}),(\\mathrm{C})-(\\mathrm{II}),(\\mathrm{D})-(\\mathrm{I})$$"}, {"identif... | ["C"] | null | (A) $$\mathrm{BrF}_{5}-$$ square pyramidal<br/><br/>
(B) $$\left[\mathrm{CrF}_{6}\right]^{3-}-$$ octahedral<br/><br/>
(C) $$\mathrm{O}_{3}-$$ bent<br/><br/>
(D) $$\mathrm{PCl}_{5}$$ - trigonal bipyramidal | mcq | jee-main-2022-online-26th-july-morning-shift | 866 |
1l6p6q3wz | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?</p> | [{"identifier": "A", "content": "$$\\mathrm{BCl}_{3}$$ and $$\\mathrm{SF}_{6}$$"}, {"identifier": "B", "content": "$$\\mathrm{NO}$$ and $$\\mathrm{H}_{2} \\mathrm{SO}_{4}$$"}, {"identifier": "C", "content": "$$\\mathrm{SF}_{6}$$ and $$\\mathrm{H}_{2} \\mathrm{SO}_{4}$$"}, {"identifier": "D", "content": "$$\\mathrm{BCl}... | ["B"] | null | (A) $\mathrm{BCl}_{3}$ - Even electron molecules
<br/> $\mathrm{SF}_{6}$ - Expended octet molecules
<br/><br/>
(B) $\mathrm{NO}$ - Odd electron molecules<br/>
$\mathrm{H}_{2} \mathrm{SO}_{4}$ - Expanded octet<br/><br/>
(C) $\mathrm{SF}_{6}-$ Even e... | mcq | jee-main-2022-online-29th-july-morning-shift | 869 |
1l6rlc43e | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | <p>Consider, $$\mathrm{PF}_{5}, \mathrm{BrF}_{5}, \mathrm{PCl}_{3}, \mathrm{SF}_{6},\left[\mathrm{ICl}_{4}\right]^{-}, \mathrm{ClF}_{3}$$ and $$\mathrm{IF}_{5}$$.</p>
<p>Amongst the above molecule(s)/ion(s), the number of molecule(s)/ion(s) having $$\mathrm{sp}^{3}\mathrm{~d}^{2}$$ hybridisation is __________.</p> | [] | null | 4 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1l7nqvd68/cab139cf-e263-4f83-8376-948ba4f86329/3e29f700-2c8a-11ed-a521-1f85f535c206/file-1l7nqvd69.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1l7nqvd68/cab139cf-e263-4f83-8376-948ba4f86329/3e29f700-2c8a-11ed-a521-1f85f535c206/fi... | integer | jee-main-2022-online-29th-july-evening-shift | 871 |
ldo9trsz | chemistry | chemical-bonding-and-molecular-structure | hybridization-and-vsepr-theory | Amongst the following, the number of species having the linear shape is _________.
<br/><br/>
$\mathrm{XeF}_{2}, \mathrm{I}_{3}^{+}, \mathrm{C}_{3} \mathrm{O}_{2}, \mathrm{I}_{3}^{-}, \mathrm{CO}_{2}, \mathrm{SO}_{2}, \mathrm{BeCl}_{2}$ and $\mathrm{BCl}_{2}^{\ominus}$ | [] | null | 5 | <img src="https://app-content.cdn.examgoal.net/fly/@width/image/1lect9lyz/7e414fab-0229-4be9-958f-650518fba5c3/810e44b0-b11c-11ed-8d19-c1418e0c6b67/file-1lect9lz0.png?format=png" data-orsrc="https://app-content.cdn.examgoal.net/image/1lect9lyz/7e414fab-0229-4be9-958f-650518fba5c3/810e44b0-b11c-11ed-8d19-c1418e0c6b67/fi... | integer | jee-main-2023-online-31st-january-evening-shift | 872 |
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