List of practice Questions

The shortest distance between the lines $ \frac{x}{-1}=\frac{y}{1}=\frac{z}{1} $ and $ \frac{x-3}{0}=\frac{y+3}{1}=\frac{z-3}{-1} $ is

A fair die is rolled. Consider the events A = { $ 1, 3, 5 $ }, B = { $ 2, 3 $ } and C = { $ 2, 3, 4, 5 $ }. Then, the conditional probability $ P (A \cup B / C) $ is

$20\, dm^{3}$ of $SO_{2}$ diffuse through a porous partition in $60\, s$. What volume of $O_{3}$ will diffuse under similar conditions?

Which one of the following is planar?

A block of mass $M$ is pulled along a horizontal frictionless surface by a rope of mass $m$. If a force $P$ is applied at the free end of the rope, the force exerted by the rope on the block is

Which of the following has maximum number of isotopes?

Which of the following is genotypic ratio of Mendel?s monohybrid cross?

Which of the following metals does not show variable valency in $d$-block?

Which of the following plants requires light exposure less than the critical period to initiate flowering?

Which of the following oxyacids does not exist ?

Which of the following organisms cite an example of commensalism?

Which one of the following is not a condensation polymer ?

Who amongst the following proposed the law of limiting factors?

Which arrangement of electrons leads to ferromagnetism?

Two ideal diodes are connected to a battery as shown in the circuit. The current supplied by the battery is

The unit of ebullioscopic constant is ______.

The reaction of ${HCOOH}$ with conc. ${H_2SO_4}$ gives

The plane face of a planoconvex lens is silvered. If $\mu$ be the refractive index and $R$, the radius of curvature of curved surface, then the system will behave like a concave mirror of radius of curvature

The dimensions of heat capacity are

The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is

The conversion of $A \rightarrow B$ follows second order kinetics. If $[A]$ is increased 3 times then rate of formation of $[B]$ is

Sulphur in + 3 oxidation state is present in

Species area relationship curve had been proposed by

$Propan-1-ol$ can be prepared from propene by

In the equation $\frac{dN}{dt} = rN \left( \frac{K -N}{K} \right)$ 'N? denotes