Question
stringlengths
2
3k
label
int64
0
1
28. If $q$ is false and $p \wedge q \longleftrightarrow r$ is true, then which one of the following statements is a tautology? (a) $p \vee r$ (b) $(p \wedge r) \rightarrow(p \vee r)$ (c) $(p \vee r) \rightarrow(p \wedge r)$ (d) $p \wedge r$
1
How do I transfer Paytm balance to bank account?
0
22. What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with two equivalents of metallic sodium in ether? (a) ![](https://cdn.mathpix.com/cropped/2024_05_03_616bdce11c835394482dg-320.jpg?height=105&width=122&top_left_y=544&top_left_x=239) (b) ![](https://cdn.mathpix.com/cropped/2024_05_03_616bd...
1
In what century did "style" as an artistic concept arise?
0
36. The equation of the plane containing the lines $2 x-5 y+z=3, x+y+4 z=5$ and parallel to the plane $x+3 y+6 z=1$ is (a) $2 x+6 y+12 z=13$ (b) $x+3 y+6 z=-7$ (c) $x+3 y+6 z=7$ (d) $2 x+6 y+12 x=-13$
1
What is the difference between Prolog and Python with respect to coding artificial Intelligence problems?
0
Ex. 1. Calculate the number of m.e. of $\mathrm{H}_{2} \mathrm{SO}_{4}$ present in 10 mL of $\mathrm{N} / 2 \mathrm{H}_{2} \mathrm{SO}_{4}$ solution.
1
17. Three identical dice are rolled. The probability that the same number will appear on each of them is a. $1 / 6$ b. $1 / 36$ c. $1 / 18$ d. $3 / 28$
1
116 Show that the distance between an object and its real image formed by a thin converging lens is always greater than or equal to four times the focal length of the lens.
1
26. If $z=i \log (2-\sqrt{-3})$, then $\cos z=$ a. -1 b. $-1 / 2$ c. 1 d. $1 / 2$
1
What is the best laptop cooling pad I can get in India?
0
10. In the electrolysis of an aqueous solution of a salt, the pH in the space near one of the electrodes increased. A solution of which of the following salts was electrolysed? (a) $\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}$ (b) $\mathrm{CuCl}_{2}$ (c) KCl (d) none of these
1
36. Figure shows a closed dotted surface which intersects a conducting uncharged sphere. If a positive charge is placed at the point $P$, the flux of the electric field through the closed surface ![](https://cdn.mathpix.com/cropped/2024_06_12_88c1c8d683adf388794bg-228.jpg?height=205&width=383&top_left_y=1951&top_left_...
1
Ex. 39. Calculate the boiling point of bromine from the following data: $\Delta H^{0}$ and $\Delta S^{0}$ values of $\mathrm{Br}_{2}(\mathrm{l}) \rightarrow \mathrm{Br}_{2}(\mathrm{~g})$ are $30.91 \mathrm{~kJ} / \mathrm{mole}$ and $93.2 \mathrm{~J} / \mathrm{mol} . \mathrm{K}$ respectively. Assume that $\Delta H$ and ...
1
Is it healthy to eat a tomato every day?
0
What are mass parties?
0
Did Hrithik Roshan have an affair with Kangana Ranaut?
0
1. A submarine experience a pressure of $5.05 \times 10^{6} \mathrm{~Pa}$ at a depth of $d_{1}$ in a sea. When it goes further to a depth of $d_{2}$, it experiences a pressure of $8.08 \times 10^{6} \mathrm{~Pa}$, then $d_{2}-d_{1}$ is approximately (density of water $=10^{3} \mathrm{~kg} / \mathrm{m}^{3}$ and accelera...
1
Which AP or CLEP test should I take for my college application to TEFL?
0
35. Standing waves of frequency $5 \cdot 0 \mathrm{kHz}$ are produced in a tube filled with oxygen at $300 \mathrm{~K}$. The separation between the consecutive nodes is $3.3 \mathrm{~cm}$. Calculate the specific heat capacities $C_{p}$ and $C_{V}$ of the gas.
1
How does it feel when people call you a dirty player? Do you think you're dirty at all when it comes to playing the game?
0
3. Two particles move at right angle to each other. Their de-Broglie wavelengths are $\lambda_{1}$ and $\lambda_{2}$, respectively. The particles suffer perfectly inelastic collision. The de-Broglie wavelength $\lambda$ of the final particle, is given by (a) $\frac{1}{\lambda^{2}}=\frac{1}{\lambda_{1}^{2}}+\frac{1}{...
1
What is the meaning of the saying, "the perfect is the enemy of the good enough?"
0
Can a GTX 1080 be paired up with Fury X?
0
What are "greenies" in baseball?
0
7. Two events $A$ and $B$ have probabilities 0.25 and 0.50 , respectively. The probability that both $A$ and $B$ occur simultaneously is 0.14 . Then, the probability that neither $A$ nor $B$ occurs, is (1980, 1M) (a) 0.39 (b) 0.25 (c) 0.11 (d) None of these
1
2.45 Arrange the following type of radiations in increasing order of frequency: (a) radiation from microwave oven (b) amber light from traffic signal (c) radiation from FM radio (d) cosmic rays from outer space and (e) X-rays.
1
Is Donald Trump popular in Norway?
0
How can I search for job vacancies in finance companies?
0
9. The figure shows two infinite semi-cylindrical shells: shell-1 and shell-2. Shell- 1 carries current $i_{1}$, in inward direction normal to the plane of paper, while shell-2 carries same current $i_{1}$, in opposite direction. A long straight conductor lying along the common axis of the shells is carrying current $i...
1
What could, in Rondanini's opinion, architecture "stimulate and influence"?
0
How much money do the top earning real estate agents in the world make?
0
Example 8.5 A pendulum bob has a speed 3 m/s while passing through its lowest position. What is its speed when it makes an angle of 60 with the vertical ? The length of the pendulum is 0. 5 m. Take g  10 m/s 2 .
1
43. $C_{1}$ is a circle of radius 1 touching the $x$-axis and the $y$-axis. $C_{2}$ is another circle of radius $>1$ and touching the axes as well as the circle $C_{1}$. Then, the radius of $C_{2}$ is a. $3-2 \sqrt{2}$ b. $3+2 \sqrt{2}$ c. $3+2 \sqrt{3}$ d. None of these
1
Star Wars: Why was the Republic so adamant about fighting the Separatists? If they wanted to secede, they should be allowed to, right?
0
2. The equation $\sin ^{2} \theta=\frac{x^{2}+y^{2}}{2 x y}$ is possible if a. $x=y$ h $x=-y$ c. $2 x=y$ d none of these
1
27. When $0.2 \mathrm{~kg}$ of brass at $100^{\circ} \mathrm{C}$ is dropped into $0.5 \mathrm{~kg}$ of water at $20^{\circ} \mathrm{C}$, the resulting temperature is $23^{\circ} \mathrm{C}$. The specific heat of brass is (a) $0.41 \times 10^{3} \mathrm{Jkg}^{-1}{ }^{\circ} \mathrm{C}^{-1}$ (b) $0.41 \times 10^{2} \math...
1
How will you do M.Tech in CSE if you do not have a B.Tech degree at all?
0
What is the best way to get rid of acne?
0
1. The inverse of a skew-symmetric matrix of odd order is a. a symmetric matrix b. a skew symmetric c. diagonal matrix d. does not exist
1
21. The graph of $y=g(x)$ in its domain is broken at a. 1 point b. 2 points c. 3 points d. None of these
1
Is it true that logic doesn't work?
0
10. $\Delta \mathrm{U}$ is equal to (a) Isochoric work (b) Isobaric work (c) Adiabatic work (d) Isothermal work
1
What are some of the most hypocritical things that Indians do?
0
What are the best Tamil songs for a bass voice?
0
What seismic zone does New Delhi fall under?
0
| 2 | ![](https://cdn.pureessence.tech/09cc3167-3dd2-4328-9baf-940ca6af695a.png) | | | | |
1
36. The compound insoluble in acetic acid is : (a) calcium oxide (b) calcium carbonate (c) calcium oxalate (d) calcium hydroxide
1
36. $x^{2}-x y+y^{2}-4 x-4 y+16=0$ represents a. a point b. a circle c. a pair of straight lines d. none of these
1
14. Find three-dimensional vectors $\overrightarrow{v_{1}}, \overrightarrow{v_{2}}$ and $\overrightarrow{v_{3}}$ satisfying $\overrightarrow{v_{1}} \cdot \overrightarrow{v_{1}}=4, \overrightarrow{v_{1}} \cdot \overrightarrow{v_{2}}=-2, \overrightarrow{v_{1}} \cdot \overrightarrow{v_{3}}=6, \overrightarrow{v_{2}} \cdot ...
1
2. An AC source producing emf $$ \left.\varepsilon=\varepsilon_{0}\left[\cos \left(100 \pi \mathrm{s}^{-1}\right) t+\cos 500 \pi \mathrm{s}^{-1}\right) t\right] $$ is connected in series with a capacitor and a resistor. The steady-state current in the circuit is found to be $$ i=i_{1} \cos \left[\left(100 \pi \mathr...
1
What's the best exercise to start weight loss for someone who is generally unfit?
0
What was Greece accused of covering up the extent of?
0
Mobile Hacking: How do I hack a cell phone from another cell phone?
0
28. Value of b-c is (a) 162 (b) -54 (c) 54 (d) -162
1
How do I deal with younger brother/sister if they get caught watching sex videos?
0
21. Molecular formula of Glauber's salt is (a) $\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}$ (b) $\mathrm{CuSO}_{4} \cdot 5 \mathrm{H}_{2} \mathrm{O}$ (c) $\mathrm{FeSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}$ (d) $\mathrm{Na}_{2} \mathrm{SO}_{4} \cdot 10 \mathrm{H}_{2} \mathrm{O}$
1
What is the average speed of an aeroplane?
0
3. Two vectors $A$ and $B$ have magnitudes 2 units and 4 units respectively. Find $A \cdot B$ if angle between these two vectors is (a) $0^{\circ}$ (b) $60^{\circ}$ (c) $90^{\circ}$ (d) $120^{\circ}$ (e) $180^{\circ}$
1
I'm really in love with a girl and don't know if I should tell her how bad in love im with her?
0
12. Among the following compounds, which is not a structural isomers of others? ![](https://dataprep-doubtsolver-pureessence.s3.amazonaws.com/581a8743-e44f-4f2f-a019-b545a4fd7c20)
1
What are comparative rankings of DU colleges?
0
What type of brain waves are sen when a creature is awake, but inattentive?
0
What are some fields of knowledge concerning the animal world that have been revolutionizes in the 21st century?
0
39. $\lim _{n \rightarrow \infty}\left(\left(\frac{n}{n+1}\right)^{\alpha}+\sin \frac{1}{n}\right)^{n}$ (when $\alpha \in Q$ ) is equal to a. $e^{-\alpha}$ b. $-\alpha$ c. $e^{1-\alpha}$ d. $e^{1+\alpha}$
1
8. A bird in air looks at a fish directly below it inside in a transparent liquid in a tank. If the distance of the fish as estimated by the bird is $h_{1}$ and that of the bird as estimated by the fish is $h_{2}$, then the refractive index of the liquid is (a) $\frac{h_{2}}{h_{1}}$ (b) $\frac{h_{1}}{h_{2}}$ (c) $\frac...
1
In the anime Fairy Tail, do Juvia and Gray end up getting together?
0
How could I improve my English?
0
How does Quora calculate views on a particular answer?
0
Where did the Balkan wars take place?
0
What is the aim of religions?
0
6. Electrochemical equivalent of a substance is 0.0006735 ; its eq. wt. is (a) 65 (b) 67.35 (c) 130 (d) cannot be calculated
1
43. A lamp of negligible height is placed on the ground $\ell_{1}$ away from a wall. $A$ man $\ell_{2} \mathrm{~m}$ tall is walking at a speed of $\frac{\ell_{1}}{10} \mathrm{~m} / \mathrm{s}$ from the lamp to the nearest point on the wall. When he is midway between the lamp and the wall, the rate of change in the leng...
1
10. When cyclohexane is poured on water, it floats, because: (a) cyclohexane is in 'boat' form (b) cyclohexane is in 'chair' form (c) cyclohexane is in 'crown' form (d) cyclohexane is less dense than water.
1
1. The ratio of the areas of the triangles $P Q S$ and $P Q R$ is a. $1: \sqrt{2}$ b. $1: 2$ c. $1: 4$ d. $1: 8$
1
14. For a satellite orbiting close to the surface of earth the period of revolution is $84 \mathrm{~min}$. The time period of another satellite orbiting at a height three times the radius of earth from its surface will be (a) (84) $2 \sqrt{2} \mathrm{~min}$ (b) 8 (84) $\mathrm{min}$ (c) (84) $3 \sqrt{3} \mathrm{~min}$ ...
1
What are some laws that should be made to control the high levels of animal trafficking in India?
0
31. The slope of the tangent at $(x, y)$ to a curve passing through a point $(2,1)$ is $\frac{x^{2}+y^{2}}{2 x y}$, then the equation of the curve is a. $2\left(x^{2}-y^{2}\right)=3 x$ b. $2\left(x^{2}-y^{2}\right)=6 y$ c. $x\left(x^{2}-y^{2}\right)=6$ d. $x\left(x^{2}+y^{2}\right)=10$
1
6. Which of the following is 3 -bromo-4-nitro toluene? (A) ![](https://cdn.mathpix.com/cropped/2024_07_29_daa488d5da9e5f8229abg-140.jpg?top_left_x=342&top_left_y=654&width=248&height=286) (B) ![](https://cdn.mathpix.com/cropped/2024_07_29_daa488d5da9e5f8229abg-140.jpg?top_left_x=794&top_left_y=655&width=207&height=283)...
1
What Greco-Roman technologies were lost during the Middle Ages?
0
15. A first order reaction is carried out with an initial concentration of 10 moles per litre and $80 \%$ of the reactant changed into the product. Now if the same reaction is carried out with an initial concentration of 5 moles per litre, the percentage of the reactant changing to the product is (a) 40 (b) 80 (c) 160 ...
1
Can a mechanical engineer become an astronaut?
0
14. Amongst the given options, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is (are) ![](https://cdn.pureessence.tech/c38a08bd-4508-4c43-a52c-a37ad3618192.png) ![](https://cdn.pureessence.tech/05b34eee-03aa-4cb4-8822-d104618df962.png) (c) $\mathrm{H}_{2} \mathrm{C}...
1
11.27 Preparation of ethers by acid dehydration of secondary or tertiary alcohols is not a suitable method. Give reason.
1
What theory sees an emotional episode as consisting of components?
0
41. In a sample of pitchblende the atomic ratio is ${ }^{206} \mathrm{~Pb}:{ }^{238} \mathrm{U}=0 \cdot 23: 1$. Calculate the age of the mineral, if half-life of uranium is taken as $4.5 \times 10^9$ years. All lead originated from uranium. $\left(1.34 \times 10^9\right.$ years $)$
1
13. If $\vec{r} \cdot \vec{a}=\vec{r} \cdot \vec{b}=\vec{r} \cdot \vec{c}=0$, where $\vec{a}, \vec{b}$ and $\vec{c}$ arc non-coplanar, then a. $\vec{r} \perp(\vec{c} \times \vec{a})$ b. $\vec{r} \perp(\vec{a} \times \vec{b})$ c. $\vec{r} \perp(\vec{b} \times \vec{c})$ d. $\vec{r}=\overrightarrow{0}$
1
In what year did the merger take place?
0
What is it like to be high on marijuana or other sources of THC?
0
34. If matrix $A$ is given by $A=\left[\begin{array}{cc}6 & 11 \\ 2 & 4\end{array}\right]$, then the determinant of $A^{2005}-6 A^{2004}$ is a. $2^{2006}$ b. $(-11) 2^{2005}$ c. $-2^{2005} \cdot 7$ d. (-9) $2^{2004}$
1
(a) cis-[CrCl $\left.2_{2}(\mathrm{ox})_{2}\right]^{3-}$
1
What is the light rail system in Hyderabad known as?
0
11. In the standardization of $\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}$ using $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ by iodometry, the equivalent weight of $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ is (a) (molecular weight) $/ 2$ (b) (molecular weight)/6 (c) (molecular weight) $/ 3$ (d) same...
1
What is it like to live in Köln, Germany?
0
What language is used in Macedonia?
0
16. Area of the region $\{(x, y)\} \in R^{2}: y \geq \sqrt{|x+3|}$, $5 y \leq(x+9) \leq 15\}$ is equal to (a) $\frac{1}{6}$ (b) $\frac{4}{3}$ (c) $\frac{3}{2}$ (d) $\frac{5}{3}$
1
4. If the tangent to the ellipse $x^{2}+2 y^{2}=1$ at point $P\left(\frac{1}{\sqrt{2}}, \frac{1}{2}\right)$ meets the auxiliary circle at point $R$ and $Q$. Then find point of intersection of tangents to circle at $Q$ and $R$.
1
Where does the water from the Great Lakes come from, and how does these lakes wildlife compare to Lake Mamry?
0
When did the Calukya empire split into four?
0
1. Two blocks $A$ and $B$ of masses $m_{A}=1 \mathrm{~kg}$ and $m_{B}=3 \mathrm{~kg}$ are kept on the table as shown in figure. The coefficient of friction between $A$ and $B$ is 0.2 and between $B$ and the surface of the table is also 0.2. The maximum force $F$ that can be applied on $B$ ![](https://cdn.mathpix.com/c...
1