Question stringlengths 2 3k | label int64 0 1 |
|---|---|
How can I ask my question on Quora? | 0 |
Jason McCabe Calacanis: Have you ever worked with freelancers or outsourced any of your work needs? What do you think of the concept of freelancing? | 0 |
What publication is Schodt responsible for? | 0 |
54. The given compound is called valproic acid used in treatment of epilepsy. What is the correct name of valproic acid?
(A) Heptane-4-carboxylic acid
(B) 2-propylpentanoic acid
(C) 2-propy... | 1 |
13. When a drop of oil is spread on a water surface, it
displays beautiful colours in daylight because of (a) disperson of light (b) reflection of light
(c) polarization of light (d) interference of light. | 1 |
Example 1.109 Find the values of the parameter $a$ such that the roots $\alpha, \beta$ of the equation $2 x^{2}+6 x+a=0$ satisfy the inequality $\alpha / \beta+\beta / \alpha<2$. | 1 |
How are dogs trained? | 0 |
How is it possible for cops to trace a lost mobile using the IMEI number even after the SIM card has been taken out? | 0 |
What is distance vector? | 0 |
35. Dissolving 120 g urea (mol. wt. $=60$ ) in 1000 g of water gives a solution of density $1.15 \mathrm{~g} / \mathrm{mL}$. The molarity of the solution is
(a) 1.78 M
(b) 2.00 M
(c) 2.05 M
(d) 2.22 M
[Hint: Volume of solution $=$ mass of solution $\times$ density] | 1 |
50. Solid $\mathrm{AgNO}_3$ is gradually added to a solution containing $\mathrm{Cl}^{-}$and $\Gamma$. If $K_{\mathrm{sp}}$ values of AgCl and AgI are respectively $1.7 \times 10^{-10}$ and $1.5 \times 10^{-16}$, which one will precipitate first? Also, find the relative concentration of $\left[\mathrm{I}^{-}\right]$to ... | 1 |
What is the best HUD system you have used till date? | 0 |
32. For which one of the following pairs $(i, j)$ are the events $A_{i}$ and $A_{j}$ independent?
a. $(3,4)$
b. $(4,6)$
c. $(2,3)$
d. $(4,2)$ | 1 |
Would Batman have to patrol all of Gotham City? Is the entire city bad? | 0 |
29. If $b_{1} b_{2}=2\left(c_{1}+c_{2}\right)$, then at least one of the equations $x^{2}+b_{1} x$ $+c_{1}=0$ and $x^{2}+b_{2} x+c_{2}=0$ has
a. imaginary roots
b. real roots
c. purely imaginary roots
d. none of these | 1 |
What is most powerful country in Asia and why? | 0 |
What do tumors typically feel like? | 0 |
How is Shah Rukh Khan in real life, and what is it like interviewing him? | 0 |
Why does the MSM always ask Ivanka how she feels about the way her Dad treats women but they never ask Chelsea? | 0 |
29. If $\alpha$ and $\beta(\alpha<\beta)$ are the roots of the equation $x^{2}+b x+c=0$, where $c<0<b$, then
(2000, 1M)
(a) $0<\alpha<\beta$
(b) $\alpha<0<\beta<|\alpha|$
(c) $\alpha<\beta<0$
(d) $\alpha<0<|\alpha|<\beta$ | 1 |
Example 4.10 Prove that $\tan ^{-1} x+\tan ^{-1} \frac{1}{x}= \begin{cases}\pi / 2, & \text { if } x>0 \\ -\pi / 2, & \text { if } x<0\end{cases}$ | 1 |
8. Half-life of a radioactive substance $A$ is 4 days. The probability that a nucleus will decay in two half-lives is
(JEE 2006)
(a) $\frac{1}{4}$
(b) $\frac{3}{4}$
(c) $\frac{1}{2}$
(d) 1 | 1 |
How do you spot a Pokémon in Pokémon GO? | 0 |
When did the first industrial revolution merge into the second? | 0 |
Who according to you has influenced your life most? | 0 |
11. Starting with a sample of pure ${ }^{66} \mathrm{Cu}, \frac{3}{4}$ of it decays into $\mathrm{Zn}$ in 15 minutes. The corresponding half-life is
(a) 5 minutes
(b) 7.5 minutes
(c) 10 minutes
(d) 3.5 minutes | 1 |
14. Find the equation of a plane which passes through the point $(1,2,3)$ and which is equally inclined to the planes $x-2 y+2 z-3=0$ and $8 x-4 y+z-7=0$. | 1 |
Illustration 1.34 The vectors $2 \hat{i}+3 \hat{j}, 5 \hat{i}+6 \hat{j}$ and $8 \hat{i}+\lambda \hat{j}$ have their initial points at $(1,1)$. Find the value of $\lambda$ so that the vectors terminate on one straight line. | 1 |
Why did Sell consider the questions regarding sexual attraction the most important? | 0 |
If a Bollywood movie were made on the life and career of Dhirubhai Ambani, what would be its opening scene? | 0 |
46. The species having tetrahedral shape is
[2004S]
(a) $\left[\mathrm{PdCl}_{4}\right]^{2-}$
(b) $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
(c) $\left[\mathrm{Pd}(\mathrm{CN})_{4}\right]^{2-}$
(d) $\left[\mathrm{NiCl}_{4}\right]^{2-}$ | 1 |
What did Financiers refer to rich industrialist as? | 0 |
What king ruled Persia in 520 BC? | 0 |
Who focuses on things such as evading payment of federal income tax, mail theft, or physical attacks on federal officials, as well as interstate crimes like drug trafficking and wire fraud? | 0 |
How can I get casual sex for free? | 0 |
What does your family tree look like? | 0 |
Which is the best laptop under 90k? | 0 |
3.14 How much electricity is required in coulomb for the oxidation of
(i) 1 mol of $\mathrm{H}_{2} \mathrm{O}$ to $\mathrm{O}_{2}$ ?
(ii) 1 mol of FeO to $\mathrm{Fe}_{2} \mathrm{O}_{3}$ ? | 1 |
29. $\vec{a}, \vec{b}$ and $\vec{c}$ are unit vectors such that $|\vec{a}+\vec{b}+3 \vec{c}|=4$. Angle between $\vec{a}$ and $\vec{b}$ is $\theta_{1}$, between $\vec{b}$ and $\vec{c}$ is $\theta_{2}$ and between $\vec{a}$ and $\vec{c}$ varies $[\pi / 6,2 \pi / 3]$. Then the maximum value of $\cos \theta_{1}+$ $3 \cos \... | 1 |
How can I make reading a regular habit? | 0 |
How do you take anabolic steroids? | 0 |
I never had a friend in my past life and now, when I have friends, I feel like it is better not to have friends. Is there something wrong with me? | 0 |
59. A parabola $y=a x^{2}+b x+c$ crosses the $x$-axis at $(\alpha, 0)$ $(\beta, 0)$ both to the right of the origin. A circle also passes through these two points. The length of a tangent from the origin to the circle is
a. $\sqrt{\frac{b c}{a}}$
b. $a c^{2}$
c. $\frac{b}{a}$
d. $\sqrt{\frac{c}{a}}$ | 1 |
32. Which of the following is an organometallic compound?
[1997 - 1 Mark]
(a) Lithium methoxide
(b) Lithium acetate
(c) Lithium dimethylamide
(d) Methyl lithium | 1 |
Commodities: What factors affect the price of copper? | 0 |
What is flixcart.com? | 0 |
Can I use Apache storm in PHP? | 0 |
11. The equation of a circle is $S_{1} \equiv x^{2}+y^{2}=1$. The orthogonal tangents to $S_{1}$ meet at another circle $S_{2}$ and the orthogonal tangents to $S_{2}$ meet at the third circle $S_{3}$. Then
(a) Radius of $S_{2}$ and $S_{3}$ are in the ratio $1: \sqrt{2}$
(b) Radius of $S_{2}$ and $S_{3}$ are in the ra... | 1 |
84. If $I=\int_{-20 \pi}^{20 \pi}|\sin x|[\sin x] d x$ (where [.] denotes the greatest integer function), then the value of $I$ is
a. -40
b. 40
c. 20
d. -20 : | 1 |
4. The negation of the boolean expression $\sim s \vee(\sim r \wedge s)$ is equivalent to
(a) $s \wedge r$
(b) $\sim s \wedge \sim r$
(c) $s \vee r$
(d) $r$ | 1 |
Who was the first White Walker/Other? | 0 |
32. With reference to aqua regia, choose the correct option(s)
(a) Reaction of gold with aqua regia produces $\mathrm{NO}_{2}$ in the absence of air
(b) Reaction of gold with aqua regia produces an anion having $\mathrm{Au}$ in +3 oxidation state
(c) Aqua regia is prepared by mixing conc. $\mathrm{HCl}$ and conc. ... | 1 |
33. Thionyl chloride can be synthesized by chlorinating $\mathrm{SO}_{2}$ using $\mathrm{PCI}_{5}$. Thionyl chloride is used to prepare anhydrous ferric chloride starting from its hexahydrated salt. Alternatively, the anhydrous ferric chloride can also be prepared from its hexahydrated salt by treating with2, 2 - dimet... | 1 |
Which region has the 2nd largest rain-forest in the world? | 0 |
57. Common name of the given compound is :
(A) Naphthalene
(B) Anthracene
(C) Phenanthracene
(D) Phenanthrene | 1 |
Where do colder areas occur within southern Europe? | 0 |
Another form of corruption, the practice of usury, is called what? | 0 |
How can I save a PowerPoint presentation as a video? | 0 |
4. The thermal radiation emitted by a body is proportional to $T^{n}$ where $T$ is its absolute temperature. The value of $n$ is exactly 4 for
(a) a blackbody
(b) all bodies
(c) bodies painted black only
(d) polished bodies only. | 1 |
26. Which of the following does not characterise X-rays?
(a) The radiation can ionise gases
(b) It causes $\mathrm{ZnS}$ to fluorescence
(c) Deflected by electric and magnetic fields
(d) Have wavelengths shorter than ultraviolet rays | 1 |
7. The plate current in a triode valve is zero. The temperature of the filament is high. It is possible that
(a) $V_{g}>0, V_{p}>0$
(b) $V_{g}>0, V_{p}<0$
(c) $V_{g}<0, V_{p}>0$
(d) $V_{g}<0, V_{p}<0$. | 1 |
Why is talking to girls online easier? | 0 |
20. The magnetic field at a distance $x$ on the axis of a circular coil of radius $R$ is $\frac{1}{8}$ th of that at the centre. The value of $x$ is
(a) $\frac{R}{\sqrt{3}}$
(b) $\frac{2 R}{\sqrt{3}}$
(c) $R \sqrt{3}$
(d) $R \sqrt{2}$ | 1 |
18. A particle of mass $M$ at rest decays into two particles of masses $m_{1}$ and $m_{2}$ having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles $\lambda_{1} / \lambda_{2}$ is
(a) $m_{1} / m_{2}$
(b) $m_{2} / m_{1}$
(c) 1
(d) $\sqrt{m_{2}} / \sqrt{m_{1}}$ | 1 |
What type of land taxation system did the East India Company instigate in Bengal? | 0 |
What Korean word was derived from the Japanese word for manga? | 0 |
What were the calculations of this myth? | 0 |
What is a suitable inpatient drug and alcohol rehab center near Watauga County NC? | 0 |
How do you know if your partner loves you? | 0 |
38. A ball is projected from a point on the floor with a speed
of 15 m/s at an angle of 60 with the horizontal. Will it
hit a vertical wall 5 m away from the point of projection
and perpendicular to the plane of projection without
hitting the floor ? Will the answer differ if the wall is
22 m away ? | 1 |
(c) the power delivered by the battery at this instant and | 1 |
Example 3.2
The decomposition of $\mathrm{N}_{2} \mathrm{O}_{5}$ in $\mathrm{CCl}_{4}$ at 318 K has been studied by monitoring the concentration of $\mathrm{N}_{2} \mathrm{O}_{5}$ in the solution. Initially the concentration of $\mathrm{N}_{2} \mathrm{O}_{5}$ is $2.33 \mathrm{~mol} \mathrm{~L}^{-1}$ and after 184 minu... | 1 |
19. A ball is projected from a point in one of the two smooth parallel vertical walls against the other in a plane perpendicular to both after being reflected at each wall impinge again on the second at a point in the same horizontal plane as it started. The distance between two walls is $a, b$ is the free range on a h... | 1 |
(vi) $\{x: x$ is an equilateral triangle in a plane $\} \ldots\{x: x$ is a triangle in the same plane $\}$ | 1 |
32. The number of moles of $\mathrm{KMnO}_{4}$ that will be needed to react completely with one mole of ferrous oxalate in acidic solution is
(a) $3 / 5$
(b) $2 / 5$
(c) $4 / 5$
(d) 1
(IIT 1997) | 1 |
What was the significance of the battle of Somme, and how did this battle compare and contrast to the Battle of Penang? | 0 |
Are there any templates for employee friendly stock options agreements? | 0 |
Where are good places in the U.S to invest in real estate? | 0 |
15. The radiation corresponding to $3 \rightarrow 2$ transition of hydrogen atom falls on a metal surface to produce photoelectrons. These electrons are made to enter a magnetic field of $3 \times 10^{-4}$ $\mathrm{T}$. If the radius of the largest circular path followed by these electrons is $10.0 \mathrm{~mm}$, the w... | 1 |
What is your oldest memory? | 0 |
What are some of the best websites to watch and download anime? | 0 |
How does invalidating ₹500 and ₹1000 notes help us fight corruption and bring back black money? | 0 |
How can you console someone who is in a deep state of guilt and sorrow after they've driven over and killed their beloved cat or dog? | 0 |
(xi) $\{x: x \in \mathrm{N}$ and $2 x+1>10\} | 1 |
4
| Column I | Column II |
| :--- | :--- |
| a. The sum of binomial coefficients of terms <br> containing power of $x$ more than $x^{20}$ in $(1+x)^{41}$ <br> is divisible by | p. $2^{39}$ |
| b. The sum of binomial coefficients of rational <br> terms in the expansion of $(1 .+\sqrt{2})^{42}$ is divisible <br> by | q.... | 1 |
4. The real number $k$ for which the equation, $2 x^{3}+3 x+k=0$ has two distinct real roots in $[0,1]$
(2013 Main)
(a) lies between 1 and 2
(b) lies between 2 and 3
(c) lies between -1 and 0
(d) does not exist | 1 |
How many ITES and IT companies are located in HITEC city? | 0 |
10. A spring of force constant $k$ is cut into two pieces such that one piece is double the length of the other. Then, the long piece will have a force constant of
(a) $(2 / 3) k$
(c) $3 k$
(b) $(3 / 2) k$
(d) $6 k$ | 1 |
What was the main action of humanism during the Renaissance> | 0 |
- Phenanthrene has five resonance structures, one of which is shown. Draw the other four and Look at the five resonance structures for phenanthrene and predict which of its carbon-carbon bonds is shortest.
 | 1 |
31. The volume strength of $1.5 \mathrm{~N} \mathrm{H}_{2} \mathrm{O}_{2}$ solution is
(a) 4.8
(b) 8.4
(c) 3.0
(d) 8.0 | 1 |
1. The value of $\sin ^{-1} \frac{12}{13}-\sin ^{-1} \frac{3}{5}$ is equal to
(a) $\pi-\sin ^{-1} \frac{63}{65}$
(b) $\frac{\pi}{2}-\sin ^{-1} \frac{56}{65}$
(c) $\frac{\pi}{2}-\cos ^{-1} \frac{9}{65}$
(d) $\pi-\cos ^{-1} \frac{33}{65}$ | 1 |
10. What is the IUPAC name of the following compound?
(A) 2,3-diamino-3-bromo-3-hydroxypentanoic acid
(B) 3,4-diamino-2-bromo-2-hydroxypentanoic acid
(C) 2-bromo-2-hydroxy-3,4-diaminopent... | 1 |
How can I develop an application? | 0 |
4. What would be the best name for the following compound ? (Neglect any cis-trans isomerism that is possible.)
(A) 1-ethyl-3,4-dimethylcyclohexane
(B) 3-ethyl-1,6-dimethylcyclohexane
(C... | 1 |
19. Two identical discs are positioned on a vertical axis as shown in the figure. The bottom disc is rotating at angular velocity $\omega_{0}$ and has rotational kinetic energy $K_{0}$. The top disc is initially at rest. It then falls and sticks to the bottom disc. The change in the rotational kinetic energy of the sys... | 1 |
Do clocks really measure time? | 0 |
2. Let $E, G$ and $N$ represent the magnitudes of electromagnetic, gravitational and nuclear forces between two electrons at a given separation. Then
(a) $N>E>G$
(b) $E>N>G$
(c) $G>N>E$
(d) $E>G>N$. | 1 |
Why do I always feel like I am missing something? | 0 |
4. For a positive integer $n$, let $f_{n}(\theta)=(\tan \theta / 2)(1+\sec \theta)(1+\sec 2 \theta)(1+\sec 4 \theta) \cdots\left(1+\sec 2^{n} \theta\right)$. Then
a. $f_{2}(\pi / 16)=1$
h $f_{3}(\pi / 32)=1$
c. $f_{4}(\pi / 64)=1$
d. $f_{5}(\pi / 128)=1$
(IIT-JEE, 1999) | 1 |
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