Question stringlengths 2 3k | label int64 0 1 |
|---|---|
Should Quora allow us to upvote questions? | 0 |
How many hours you work in your job? | 0 |
When did Alfred the Great begin his reign? | 0 |
3. What volume of $\mathrm{CO}_{2}$ is obtained in the combustion of 2 litres of butane?
(8 litres) | 1 |
What is the best way to cope with fear of the unknown? | 0 |
106. The domain of $f(x)$ is $(0,1)$, then, domain of $f\left(e^{x}\right)+f(\ln |x|)$ is
a. $(-1, e)$
b. $(1, e)$
c. $(-e,-1)$
d. $(-e, 1)$ | 1 |
What is the difference between the left wing and the right wing? What is the difference on a basic level & on a hardcore politician level? | 0 |
35 SSM We wish to coat flat glass ( $n=$ $1.50)$ with a transparent material $(n=1.25)$ so that reflection of light at wavelength 600 nm is eliminated by interference. What minimum thickness can the coating have to do this? | 1 |
5. A small block is connected to one end of a massless spring of unstretched length $4.9 \mathrm{~m}$. The other end of the spring (see the figure) is fixed. The system lies on a horizontal frictionless surface. The block is stretched by $0.2 \mathrm{~m}$ and released from rest at $t=0$. It then executes simple harmoni... | 1 |
Under what rule was China not isolated? | 0 |
Why don't many people posting questions on Quora check Google first? | 0 |
What did New York enact that replaced traditional common law proceeding? | 0 |
5. The molecular geometry of $\mathrm{SF}_{6}$ is octahedral. What is the geometry of $\mathrm{SF}_{4}$ (including lone pair(s) of electrons, if any)?
(a) Tetrahedral
(b) Trigonal bipyramidal
(c) Pyramidal
(d) Square planar | 1 |
What nation lost the Hundred Years' War? | 0 |
23. How long the motor boat moved with the shut down engine;
(a) $r / v$
(b) $r / v_{0}$
(c ) $r / 2 v_{0}$
(d) $\infty$ | 1 |
Example 6 In the adjoining figure, wire $P Q$ is smooth, ring $A$ has a mass $1 \mathrm{~kg}$ and block $B, 2 \mathrm{~kg}$. If system is released from rest with $\theta=60^{\circ}$, find
... | 1 |
21. A mixture of 2 moles of helium gas (atomic mass $=4 \mathrm{amu}$ ) and 1 mole of argon gas (atomic mass $=40 \mathrm{amu}$ ) is kept at $300 \mathrm{~K}$ in a container. The ratio of the rms speeds $\left(\frac{v_{\text {rms }}(\text { helium })}{v_{\text {rms }}(\operatorname{argon})}\right)$ is
(a) 0.32
(b) 0.4... | 1 |
9.4 How can the production of dihydrogen, obtained from 'coal gasification', be increased? | 1 |
10. If the circles $x^{2}+y^{2}-9=0$ and $x^{2}+y^{2}+2 \alpha x+2 y+1$ $=0$ touch each other, then $\alpha$ is
a. $-\frac{4}{3}$
b. 0
c. 1
d. $\frac{4}{3}$ | 1 |
What really happens if a person is transfused with the wrong blood type? | 0 |
20. Out of the following compounds, which will have a zero dipole moment?
(a) 1, 1-dichloroethylene
(b) cis-1, 2-dichloroethylene
(c) trans-1, 2-dichloroethylene
(d) None of these compounds | 1 |
5. $\int \frac{\sin \frac{5 x}{2}}{\sin \frac{x}{2}} d x$ is equal to
(where, $C$ is a constant of integration )
(a) $2 x+\sin x+2 \sin 2 x+C$
(b) $x+2 \sin x+2 \sin 2 x+C$
(c) $x+2 \sin x+\sin 2 x+C$
(d) $2 x+\sin x+\sin 2 x+C$ | 1 |
Apart from India are there any other countries having similar ticket booking system like Tatkal ticket (IRCTC)? | 0 |
What is your new year resolution? | 0 |
What standardized contract law? | 0 |
15. Consider a cubical vessel of edge a having a small hole in one of its walls. The total thermal resistance of the walls is $r$. At time $t=0$, it contains air at atmospheric pressure $p_{a}$ and temperature $T_{0}$. The temperature of the surrounding air is $T_{a}\left(>T_{0}\right)$. Find the amount of the gas (in ... | 1 |
12. The line joining $A(b \cos \alpha, b \sin \alpha)$ and $B(a \cos \beta$, $a \sin \beta$ ) is produced to the point $M(x, y)$ so that $A M$ and $B M$ are in the ratio $b: a$. Then prove that $x+y \tan (\alpha+\beta / 2)=0$. | 1 |
5. The number of distinct real values of $\lambda$, for which the vectors $-\lambda^{2} \hat{i}+\hat{j}+\hat{k}, \hat{i}-\lambda^{2} \hat{j}+\hat{k}$ and $\hat{i}+\hat{j}-\lambda^{2} \hat{k}$ are coplanar is
a. zero
b. one
c. two
d. threc | 1 |
nazer kurkkoli: How do I change/update my mobile number for both SBI online banking and SMS alerts? | 0 |
Can visitors bet in uk? | 0 |
Example 6.15 Find the coefficient of $x^{13}$ in the $(1-x)^{5}$
$\times\left(1+x+x^{2}+x^{3}\right)^{4}$.$$
\text { | 1 |
10. The output of the given logic circuit is
(a) $A \bar{B}$
(b) $\bar{A} B$
(c) $A B+\overline{A B}$
(d) $A \bar{B}+\bar{A} B$ | 1 |
Is made easy class notes and materials are sufficient for scoring more than 70 marks in gate mechanical exam? | 0 |
Which bicycle is best for beginners in India? | 0 |
How can apply gun license in India? | 0 |
Why is stare decisis a limited form of lawmaking? | 0 |
How do I get over anxiety? | 0 |
What is the Sahara, and how do the average temperatures there compare to the ones in the Namib Desert? | 0 |
Why should people be kind? | 0 |
Who discussed emotions in the context of expressive body actions and cultural labels? | 0 |
26. A mixture of oxygen and hydrogen is analysed by passing it over hot copper oxide and through a drying tube. Hydrogen reduces the CuO according to the equation, $\mathrm{CuO}+\mathrm{H}_{2} \rightarrow \mathrm{Cu}+\mathrm{H}_{2} \mathrm{O}$; oxygen then oxidises the copper formed:
$$
\mathrm{Cu}+\frac{1}{2} \mathrm... | 1 |
7. $x \sin ^{-1} x$ | 1 |
76. $\lim _{x \rightarrow 0} \frac{1}{x}\left[\int_{y}^{a} e^{\sin ^{2} t} d t-\int_{x+y}^{a} e^{\sin ^{2} t} d t\right]$ is equal to
a. $e^{\sin ^{2} y}$
b. $\sin 2 y e^{\sin ^{2} y}$
c. 0
d. None of these | 1 |
70. Write the structure of the foul-smelling compound obtained when aniline is treated with chloroform in the presence of $\mathrm{KOH}$. | 1 |
4. Two long current carrying thin wires, both with current $I$, are held by insulating threads of length $L$ and are in equilibrium as shown in the figure, with threads making an angle $\theta$ with the vertical. If wires have mass $\lambda$ per unit length then, the value of $I$ is ( $g$ = gravitational acceleration)
... | 1 |
31. A compound contains 28 percent of nitrogen and 72 percent of metal by weight. 3 atoms of metal combine with 2 atoms of N. Find the atomic weight of metal. | 1 |
5. If the volume of a closed vessel in which the equilibrium $2 \mathrm{SO}_{2}+\mathrm{O}_{2} \rightleftharpoons 2 \mathrm{SO}_{3}$ is set in is halved, the rate of
(a) forward reaction will remain same as that of backward reaction
(b) forward reaction will become double that of backward reaction
(c) forward reaction ... | 1 |
What can be seen as of essential importance to a practiced of humanism? | 0 |
When did Ferdinand II die? | 0 |
3.66. Four large metal plates are located at a small distance $d$ from one another as shown in Fig. 3.8. The extreme plates are inter-
Fig. 3.8.
connected by means of a conductor while a ... | 1 |
95. The number of integral values of $x$ satisfying $\sqrt{-x^{2}+10 x-16}<x-2$ is
a. 0
b. 1
c. 2
d. 3 | 1 |
What are some cultural taboos in China? | 0 |
What venture capital firms have acquired or merged with other venture capital firms? | 0 |
On Magnus's ten point scale what would a homosexual person be considered? | 0 |
3.19 The first ionization enthalpy values (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) of group 13 elements are :
B Al Ga In Tl
$801 \quad 577 \quad 579 \quad 558 \quad 589$
How would you explain this deviation from the general trend? | 1 |
Example 10 Two metallic spheres $S_{1}$ and $S_{2}$ are made of the same material and have got identical surface finish. The mass of $S_{1}$ is thrice that of $S_{2}$. Both the spheres are heated to the same high temperature and placed in the same room having lower temperature but are thermally insulated from each othe... | 1 |
How can you make yourself get up early in the morning? | 0 |
When will be the end of the world and why? | 0 |
Who has the Best customer service? | 0 |
54. If foci of hyperbola lie on $y=x$ and one of the asymptote is $y=2 x$, then equation of the hyperbola, given that it passes through $(3,4)$ is
a. $x^{2}-y^{2}-\frac{5}{2} x y+5=0$
b. $2 x^{2}-2 y^{2}+5 x y+5=0$
c. $2 x^{2}+2 y^{2}-5 x y+10=0$
d. none of these | 1 |
9. Let $f$ be a positive function. Let $I_{1}=\int_{1-k}^{k} x f[x(1-x)] d x$,
$U$
$I_{2}=\int_{1-k}^{k} f[x(1-x)] d x$, where $2 k-1>0$. Then $\frac{I_{1}}{I_{2}}$ is
a. 2
b. $k$
c. $\frac{1}{2}$
d. 1 | 1 |
How can I drive more traffic to my website? | 0 |
75. The equilibrium
$$
\begin{equation*} 2 \mathrm{Cu}^{1} \rightleftharpoons \mathrm{Cu}^{0} \quad \mathrm{Cu}^{\mathrm{II}} \tag\end{equation*}
$$
in aqueous medium at $25^{\circ} \mathrm{C}$ shifts towards the left in the presence of
(a) $\mathrm{NO}_{3}^{-}$
(b) $\mathrm{Cl}^{-}$
(c) $\mathrm{SCN}^{-}$
(d... | 1 |
The blood-brain barrier is made up of what? | 0 |
What is the best way to build muscle? | 0 |
What happens to all the money and gold people donate to temples in India? | 0 |
What was the modern Conservative party created from? | 0 |
4. A graph between current and time during charging of a capacitor by a battery in series with a resistor is shown. The graphs are drawn for two circuits. $R_{1}, R_{2}, C_{1}, C_{2}$ and $V_{1}, V_{2}$ are the values of resistance, capacitance and EMF of the cell in the two circuits. If only two parameters (out of res... | 1 |
What is a list of all currently active Quora Knowledge Prizes? | 0 |
39. $\int \frac{d x}{\sin ^{2} x \cos ^{2} x}$ equals
(A) $\tan x+\cot x+C$
(B) $\tan x-\cot x+C$
(C) $\tan x \cot x+C$
(D) $\tan x-\cot 2 x+C$ | 1 |
10. The expansion of an ideal gas of mass $m$ at a constant pressure $p$ is given by the straight line $B$. Then, the expansion of the same ideal gas of mass $2 m$ at a pressure $2 p$ is given by the straight line
 $\mathrm{C}^{*}: \overline{\mathrm{C}}: \mathrm{C}=1.225: 1.128: 1$
(b) $\mathrm{C}^{*}... | 1 |
26. Suppose you have three resistors of $20 \Omega, 50 \Omega$ and $100 \Omega$. What minimum and maximum resistances can you obtain from these resistors? | 1 |
Example 9.12 (a) The near point of a hypermetropic person is 75 cm from the eye. What is the power of the lens required to enable the person to read clearly a book held at 25 cm from the eye? (b) In what way does the corrective lens help the above person? Does the lens magnify objects held near the eye? (c) The above p... | 1 |
What parties is the color green for? | 0 |
In which war were England and the Netherlands allies? | 0 |
63. Refer to Q. 61. For hydrogen atom, the only correct combination is
(a) (1) (i) (P)
(b) (1) (iv) (R)
(c) (2) (i) (Q)
(d) (1) (i) (S) | 1 |
Can you eat Taipan Chow Mein Noodles straight from the bag without cooking? | 0 |
3. The mass of deuterium, ${ }_{1} \mathrm{H}^{2}$ that would be needed to generate $1 \mathrm{kWh}$
(a) $3.7 \mathrm{~kg}$
(b) $3.7 \mathrm{~g}$
(c) $3.7 \times 10^{-5} \mathrm{~kg}$
(d) $3.7 \times 10^{-8} \mathrm{~kg}$ | 1 |
3. A shaft initially rotating at $1725 \mathrm{rpm}$ is brought to rest uniformly in $20 \mathrm{~s}$. The number of revolutions that the shaft will make during this time is
(a) 1680
(b) 575
(c) 287
(d) 627 | 1 |
What actions of the Soviet Union did The United States oppose? | 0 |
What phrase was coined in the 16th century to reference recent times? | 0 |
Does listening to music while reading is bad? | 0 |
How much reliable is 100% automated Intraday trading system (www.squareoff.in)? How would square off automated system react to situation like this ? | 0 |
What is vaseline glass and what are its practical uses? How safe is it? | 0 |
44. Consider a hydrogen atom with its electro in the $n^{\text {th }}$ orbital. An electromagnetic radiation of wavelength $90 \mathrm{~nm}$ is used to ionize the atom. If the kinetic energy of the ejected electron is $10.4 \mathrm{eV}$, then the value of $n$ is $(h c=1242 \mathrm{eV} \mathrm{nm})$ | 1 |
2. Consider the parabola $y^{2}=12 x$.
| Column I | Column II |
| :---: | :---: |
| a. Tangents are drawn from point $(2,3)$ <br> to the parabola $y^{2}=4 x$, then points of <br> contact are | p. $(9,-6)$ |
| b. From a point $P$ on the circle $x^{2}+y^{2}=5$, <br> the equation of chord of contact to the <br> parabola ... | 1 |
28. If $\alpha-\beta=$ constant, then the locus of the point of intersection of tangents at $P(a \cos \alpha, b \sin \alpha)$ and $Q(a \cos \beta, b \sin \beta)$ to the ellipse $\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}=1$ is
a. a circle
b. a straight line
c. an ellipse
d. a parabola | 1 |
What is the dead reagent in organic chemistry? | 0 |
What tradition did Shunga rulers help begin? | 0 |
1. Which of the following compounds will show the maximum 'enol' content?
(a) $\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5}$
(b) $\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{COCH}_{3}$
(c) $\mathrm{CH}_{3} \mathrm{COCH}_{3}$
(d) $\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CONH}_{2}$ | 1 |
39. Given that a family includes at least one boy, show that the probability that there are two or more boys is
a. $p /(2-p)$
b. $p /(1-p)$
c. $p /(2-p)^{2}$
d. $p /(1-p)^{2}$ | 1 |
10. The eccentricity of the ellipse is
a. $\frac{2}{3}$
b. $\frac{\sqrt{3}}{2}$
c. $\frac{1}{\sqrt{3}}$
d. $\frac{1}{2}$ | 1 |
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