Question stringlengths 2 3k | label int64 0 1 |
|---|---|
Do women return to normal after menopause? | 0 |
In what year did the Fourth Crusade occur? | 0 |
32. What weights of $\mathrm{P}_{4} \mathrm{O}_{6}$ and $\mathrm{P}_{4} \mathrm{O}_{10}$ will be produced by the combustion of 2 g of $\mathrm{P}_{4}$ in 2 g of oxygen leaving no $\mathrm{P}_{4}$ and $\mathrm{O}_{2}$ ?
(1.996 g, 2.004 g) | 1 |
69. Which of the following will undergo aldol condensation?
(a) acetaldehyde
(b) propanaldehyde
(c) benzaldehyde
(d) trideuteroacetaldehyde | 1 |
4. If graph of $y=f(x)$ is symmetrical about the point $(5,0)$ and $f^{\prime}(7)=3$, then the value of $f^{\prime}(3)$ is | 1 |
What is the source of the concepts in Hindu temple architecture? | 0 |
7. Which of the following is used for the conversion of2-hexyne into trans-2-hexene
(a) $\mathrm{H}_{2} / \mathrm{Pd} / \mathrm{BaSO}_{4}$
(b) $\mathrm{H}_{2}, \mathrm{PtO}_{2}$
(c) $\mathrm{NaBH}_{4}$
(d) $\mathrm{Li}-\mathrm{NH}_{3} / \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$ | 1 |
5. A metal rod of length $l$, moving with an angular velocity $\omega$ and velocity of its centre is $v$. Find potential difference between points $A$ and $B$ at the instant shown in figure. A uniform magnetic field of strength $\vec{B}$ exist perpendicular to the plane of paper:
(a) $B v l$
(b) $B v l+\frac{1}{2} B \o... | 1 |
I have brought Blu Vigo 5 in USA, is it support in India frequency band in specifically airtel…? | 0 |
40. Give reasons for the following :
(i) $\mathrm{CH}_{2}=\mathrm{CH}^{-}$is more basic than $\mathrm{HC} \equiv \mathrm{C}^{-}$.
(ii) Phenyl group is known to exert negative inductive effect. But each phenyl ring in biphenyl $\left(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{C}_{6} \mathrm{H}_{5}\right)$ is more reactive ... | 1 |
What kind of books did housebuilders use? | 0 |
19. A wire frame in the shape of an equilateral triangle is hinged at one vertex so that it can swing freely in a vertical plane, with the plane of the triangle always remaining vertical. The side of the frame is $1 / \sqrt{3} \mathrm{~m}$. The time period in seconds of small oscillations of the frame will be $\left(g=... | 1 |
What is the purpose of the critical apparatus? | 0 |
(ii) $\mathrm{CO}_{2}$ | 1 |
Who is responsible for the Holocaust? | 0 |
What are the benefit of sleeping naked? | 0 |
(i) a diamond | 1 |
5. If $\mathrm{A}=\left[\begin{array}{ccc}\frac{2}{3} & 1 & \frac{5}{3} \\ \frac{1}{3} & \frac{2}{3} & \frac{4}{3} \\ \frac{7}{3} & 2 & \frac{2}{3}\end{array}\right]$ and $\mathrm{B}=\left[\begin{array}{ccc}\frac{2}{5} & \frac{3}{5} & 1 \\ \frac{1}{5} & \frac{2}{5} & \frac{4}{5} \\ \frac{7}{5} & \frac{6}{5} & \frac{2}{... | 1 |
12. A particle free to move along the $X$-axis has potential energy given by $U(x)=k\left[1-\exp \left(-x^{2}\right)\right]$ for $-\infty \leq x \leq+\infty$, where $k$ is a positive constant of appropriate dimensions. Then,
(1999, 2M)
(a) at points away from the origin, the particle is in unstable equilibrium
(b) f... | 1 |
41. m-Chlorobenzaldehyde on reaction with conc. $\mathrm{KOH}$ at room temperature gives
(a) potassium $m$-chlorobenzoate and $m$-hydroxybenzaldehyde
(b) $m$-hydroxybenzaldehyde and $m$-chlorobenzyl alcohol
(c) $m$-chlorobenzyl alcohol and $m$-hydroxybenzyl alcohol
(d) potassium $m$-chlorobenzoate and $m$-chlorob... | 1 |
25. In the reaction,
$\mathrm{CH}_{3} \mathrm{COOH} \xrightarrow{\mathrm{LiAlH}_{4}} \mathrm{~A} \xrightarrow{\mathrm{PCl}_{5}} \mathrm{~B} \xrightarrow{\text { Alc. } \mathrm{KOH}} \mathrm{C}$,
the product $\mathrm{C}$ is:
(a) Acetaldehyde
(b) Acetylene
(c) Ethylene
(d) Acetyl chloride | 1 |
57. Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because :
(a) the hydration energy of sodium sulphate is more than its lattice energy
(b) the lattice energy of barium sulphate is more than its hydration energy
(c) the lattice energy has no role to play in solubility
(d) the hydrati... | 1 |
15. The measured density at NTP of a gaseous sample of a compound was found to be $1.78 \mathrm{~g} / \mathrm{L}$. What is the weight of 1 mole of the gaseous sample? ( 39.9 g ) | 1 |
What percentage of the U.S. population lives to the life expectancy age? | 0 |
3. The maximum focal length of the eye-lens of a person is greater than its distance from the retina. The eye is
(a) always strained in looking at an object
(b) strained for objects at large distances only
(c) strained for objects at short distances only
(d) unstrained for all distances. | 1 |
What was the faith of the early rulers of the Rastrakuta Empire? | 0 |
50. Given
1. C (graphite) $+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{CO}_{2}(\mathrm{~g}) ; \Delta H^{\circ}=-3935 \mathrm{~kJ} \mathrm{~mol}^{-1}$
2. $\mathrm{H}_{2}(\mathrm{~g})+\frac{1}{2} \mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) ; \Delta \mathrm{H}^{\circ}=-285 \mathrm{~k... | 1 |
What would surprise me most if I could travel back in time to medieval Europe? | 0 |
How likely is an India-Pakistan nuclear war? | 0 |
11. If the constant term in the binomial expansion of $\left(x^{2}-\frac{1}{x}\right)^{n}$,
$n \in N$ is 15 , then the value of $n$ is equal to. | 1 |
4. A particle of mass $m$ is fixed to one end of a light rigid rod of length $l$ and rotated in a vertical circular path about its other end. The minimum speed of the particle at its highest point must be
(a) zero
(b) $\sqrt{g l}$
(c) $\sqrt{1.5 \mathrm{gl}}$
(d) $\sqrt{2 g l}$ | 1 |
How do I send an email to Google? | 0 |
33. For the series $2+12+36+80+150+252+\cdots$, the value of $\lim _{n \rightarrow \infty} \frac{T_{n}}{n^{3}}$ is (where $T_{n}$ is $n^{\text {th }}$ term)
a. 2
b. $1 / 2$
c. 1
d. none of these | 1 |
15. In the formula $X=3 Y Z^{2}, X$ and $Z$ have dimensions of capacitance and magnetic induction, respectively. What are the dimensions of $Y$ in MKSQ system?
(a) $\left[\mathrm{M}^{-3} \mathrm{~L}^{-1} \mathrm{~T}^{3} \mathrm{Q}^{4}\right]$
(b) $\left[\mathrm{M}^{-3} \mathrm{~L}^{-2} \mathrm{~T}^{4} \mathrm{Q}^{4... | 1 |
How can I know the date code of 18650 batteries? | 0 |
Will Israel ever support India with their army if India and Pakistan start a war and China supports Pakistan? | 0 |
What is the best use of an android phone? | 0 |
14. If $S$ and $S^{\prime}$ are the foci of the ellipse $\frac{x^{2}}{25}+\frac{y^{2}}{16}=1$, and $P$ is any point on it then range of values of $S P \cdot S^{\prime} P$ is
a. $9 \leq f(\theta) \leq 16$
b. $9 \leq \mathrm{f}(\theta) \leq 25$
c. $16 \leq f(\theta) \leq 25$
d. $1 \leq f(\theta) \leq 16$. | 1 |
12. If the system of linear equations
$$
x-4 y+7 z=g, 3 y-5 z=h,-2 x+5 y-9 z=k
$$
is consistent, then
(2019 Main, 9 Jan II)
(a) $2 g+h+k=0$
(b) $g+2 h+k=0$
(c) $g+h+k=0$
(d) $g+h+2 k=0$ | 1 |
Is it better to buy DOS based Laptop (and installing windows from outside) instead of Windows from store? | 0 |
Which are some of the best dating websites in Japan? | 0 |
Which are the best places to visit in Norway? Www.krazybutterfly.com | 0 |
What percentage of children in a 2005 survey of people in Hyderabad were underweight? | 0 |
31. Which of the following is not true about $y=f(x)$ ?
a. it is an increasing function
h. it is a monotonic function
c. it has infinite points of inflections
d. None of these | 1 |
99. The two circles which passes through $(0, a)$ and $(0,-a)$ and touch the line $y=m x+c$ will intersect each other at right angle, if
a. $a^{2}=c^{2}(2 m+1)$
b. $a^{2}=c^{2}\left(2+m^{2}\right)$
c. $c^{2}=a^{2}\left(2+m^{2}\right)$
d. $c^{2}=a^{2}(2 m+1)$ | 1 |
What is your review of Academic Papers? | 0 |
17. The domain of $f(x)=\cos ^{-1}\left(\frac{2-|x|}{4}\right)+[\log (3-x)]^{-1}$ is
a. $[-2,6]$
b. $[-6,2) \cup(2,3)$
c. $[-6,2]$
d. $[-2,2] \cup(2,3)$ | 1 |
What are some examples of inclined planes? | 0 |
Which theory consist of cultured adopting new practices,ideas, and products? | 0 |
36. A cubical block of glass of refractive index $n_{1}$ is in contact with the surface of water of refractive index $n_{2}$. A beam of light is incident on vertical face of the block. After refraction a total internal reflection at the base and refraction at the opposite face take place. The ray emerges at angle $\the... | 1 |
42. In the following reaction, the major product is
[Adv. 2015]
(a)
(b)
(a) $2 M$
(b) $4 M$
(c) $\frac{M}{2}$
(d) $M$ | 1 |
21. Which of the following are the types of structural isomern?
(1) Geometrical isomerism
(2) Functional group isomerism
(3) Chain isomerism
(A) (1) and (2) only
(B) (1) and (3) only
(C) (2) and (3) only
(D) (1), (2) and (3) | 1 |
60. The equation of the curve which is such that the portion of the axis of $x$ cut off between the origin and tangent at any point is proportional to the ordinate of that point is. 3
a. $x=y(a-b \log x)$
b. $\log x=b y^{2}+a$
c. $x^{2}=y(a-b \log y)$
d. None of these
( $b$ is a constant of proportionality) | 1 |
18. For the estimation of nitrogen, $1.4 \mathrm{~g}$ of an organic compound was digested by Kjeldahl method and the evolved ammonia was absorbed in $60 \mathrm{~mL}$ of $\frac{M}{10}$ sulphuric acid. The unreacted acid required $20 \mathrm{~mL}$ of $\frac{M}{10}$ sodium hydroxide for complete neutralization. The perce... | 1 |
What dynasty made military alliances with the Kamdamba? | 0 |
Example 2.32 Show that $2\left(\sin ^{6} x+\cos ^{6} x\right)-3\left(\sin ^{4} x+\cos ^{4} x\right)+1=0$. | 1 |
4. If $(5,12)$ and $(24,7)$ are the foci of a conic passing through the origin then the eccentricity of conic is
a. $\frac{\sqrt{386}}{12}$
b. $\frac{\sqrt{386}}{13}$
c. $\frac{\sqrt{386}}{25}$
d. $\frac{\sqrt{386}}{38}$ | 1 |
2. The molecule in which hybrid MOs involve only one $d$-orbital of the central atom is :
[Main Sep. 04, 2020 (II)]
(a) $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
(b) $\mathrm{BrF}_{5}$
(c) $\mathrm{XeF}_{4}$
(d) $\left[\mathrm{CrF}_{6}\right]^{3-}$ | 1 |
3. A siren placed at a railway platform is emitting sound of frequency $5 \mathrm{kHz}$. A passenger sitting in a moving train $A$ records a frequency of $5.5 \mathrm{kHz}$, while the train approaches the siren. During his return journey in a different train $B$ he records a frequency of $6.0 \mathrm{kHz}$ while approa... | 1 |
If society reversed gender roles would transgender people be the same people or different people? | 0 |
5. The value of $\lim _{x \rightarrow 0} \frac{\sqrt{\frac{1}{2}(1-\cos 2 x)}}{x}$ is
a. 1
b. -1
c. 0
d. None of these | 1 |
5. Number of hydrogen replaced by Deuterium in the given reaction are :
(A) 3
(B) 7
(C) 8
(D) 6 | 1 |
8. An urn contains five balls. Two balls are drawn and are found to be white. Find the probability that all the balls are white | 1 |
What happens when brain cells die? | 0 |
12. Adsorption of gases on solid surface is generally exothermic because
$$
(a) enthalpy is positive
(b) entropy decreases
(c) entropy increases
(d) free energy increases | 1 |
29. Let $x^{2}+3 y^{2}=3$ be the equation of an ellipse in the $x-y$ plane. $A$ and $B$ are two points whose position vectors are $-\sqrt{3} \hat{i}$ and $-\sqrt{3} \hat{i}+2 \hat{k}$. Then the position vector of a point $P$ on the ellipse such that $\angle A P B=\pi / 4$ is
a. $\pm \hat{j}$
b. $\pm(\hat{i}+\hat{j})$
c... | 1 |
Illustration 2.28 In isosceles triangle $A B C,|\overrightarrow{A B}|=|\overrightarrow{B C}|=8$, a point $E$ divides $A B$ internally in the ratio $\mid 1: 3$, then find the angle between $\overrightarrow{C E}$ and $\overrightarrow{C A}$ (where $|\overrightarrow{C A}|=12$ ). | 1 |
What is the key to your happiness? | 0 |
How are the three component used to determine sexual orientation? | 0 |
What type of people got wealthy from the sale of state-owned companies? | 0 |
What would you do if you had $10 billion? | 0 |
When was the Republic of China established? | 0 |
In Mac Word, the lines in the paragraph are all indented, how can I make it so that only the first is? | 0 |
What was invented in approximately 1286? | 0 |
2. In an ellipse, with centre at the origin, if the difference of the lengths of major axis and minor axis is 10 and one of the foci is at $(0,5 \sqrt{3})$, then the length of its latus rectum is
(a) 5
(b) 10
(c) 8
(d) 6 | 1 |
What are the functions and responsibilities of nurse? | 0 |
Is it better to be in a relationship or to be single? | 0 |
58. Straight lines $3 x+4 y=5$ and $4 x-3 y=15$ intersect at the point $A$. Points $B$ and $C$ are chosen on these two lines such that $A B=A C$. Determine the possible equations of the line $B C$ passing through the point $(1,2)$. | 1 |
What are the best algorithm books for beginners? | 0 |
Which song is played during the Summer of International Cricket ad in Star Sports? | 0 |
1. If $a_{1}, a_{2}, a_{3}, \ldots, a_{n}$ are in $\mathrm{AP}$ and $a_{1}+a_{4}+a_{7}+\ldots+a_{16}$ $=114$, then $a_{1}+a_{6}+a_{11}+a_{16}$ is equal to
(2019 Main, 10 April I)
(a) 64
(b) 76
(c) 98
(d) 38 | 1 |
24. If the length of sub-normal is equal to the length of subtangent at any point $(3,4)$ on the curve $y=f(x)$ and the tangent at $(3,4)$ to $y=f(x)$ meets the coordinate axes at $A$ and $B$, then the maximum area of the triangle $O A B$, where $O$ is origin, is
a. $45 / 2$
b. $49 / 2$
c. $25 / 2$
d $81 / 2$ | 1 |
What is flixcart.com? | 0 |
3.180. Find the emf and the internal resistance of a source which is equivalent to two batteries connected in parallel whose emf's are equal to $\mathscr{E}_{1}$ and $\mathscr{E}_{2}$ and internal resistances to $R_{1}$ and $R_{2}$. | 1 |
What are some refutations to Egoism? | 0 |
21. Read the following statement and explanation and answer as per the options given below :
Assertion : The value of van der Waals'constant ' $a$ ' is larger for ammonia than for nitrogen.
Reason : Hydrogen bonding is present in ammonia.
(a) If both assertion and reason are correct, and reason is the correct expla... | 1 |
(iv) $\{x: x \in \mathrm{R}, 3 \leq x \leq 4\}$ | 1 |
7. The de-Broglie wavelength of a particle of mass $6.63 \mathrm{~g}$ moving with a velocity of $100 \mathrm{~ms}^{-1}$ is:
(a) $10^{-33} \mathrm{~m}$
(b) $10^{-35} \mathrm{~m}$
(c) $10^{-31} \mathrm{~m}$
(d) $10^{-25} \mathrm{~m}$ | 1 |
10. If in triangle $A B C, \angle B=90^{\circ}$, then $\tan ^{2}(A / 2)$ is
a. $\frac{b-c}{b+c}$
$\mathbf{h} \frac{b+c}{b-c}$
c. $\frac{2 b c}{b-c}$
d. none of these | 1 |
What is the best pickup line used on you or by you? | 0 |
What are the best courses available after a BE in mechanical engineering? | 0 |
26. A mass of $0.5 \mathrm{~kg}$ moving with a speed of $1.5 \mathrm{~m} / \mathrm{s}$ on a horizontal smooth surface, collides with a nearly weightless spring of force constant $k=50 \mathrm{~N} / \mathrm{m}$. The maximum compression of the spring would be
(a) $0.15 \mathrm{~m}$
(b) $0.12 \mathrm{~m}$
(c) $0.5 \mathrm... | 1 |
Where can I get very smooth and uncomplicated assistance in Sydney for any property transaction? | 0 |
13. The major product of the following reaction is :
(a)
(b)
$
b. $\left(-\frac{2}{5}, \frac{1}{5}\right)$
c. $\left(-\frac{2}{5},-\frac{1}{5}\right)$
d. $-\left(\frac{2}{5},-\frac{1}{5}\right)$ | 1 |
2. For following reactions:
$$
\begin{aligned}
& \text { A } \xrightarrow{700 \mathrm{~K}} \text { Product } \\
& \text { A } \xrightarrow[\text { catalyst }]{500 \mathrm{~K}} \text { Product }
\end{aligned}
$$
it was found that the $\mathrm{E}_{\mathrm{a}}$ is decrease by $30 \mathrm{~kJ} / \mathrm{mol}$ in the pres... | 1 |
29. 40 mL of 0.125 M of $\mathrm{NiSO}_{4}$ solution is electrolysed by a current of 0.05 amp for 40 minutes. (i) Write the equation for the reactions occurring at each electrode. (ii) How many coulombs of electricity passed through the solution? (iii) How many grams of the product deposited on the cathode? (iv) How lo... | 1 |
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