List of top Questions asked in BITSAT

In the purification of impure nickel by Mond's process, metal is purified by:

Which one is classified as a condensation polymer?

Two bodies $A$ and $B$ are placed in an evacuated vessel maintained at a temperature of $27^{\circ} C$. The temperature of $A$ is $327^{\circ} C$ and that of $B$ is $227^{\circ} C$. The ratio of heat loss from $A$ and $B$ is about

If $\vec{E}$ and $\vec{B}$ are the electric and magnetic field vectors of e.m. waves then the direction of propagation of e.m. wave is along the direction of

The time period of a satellite of earth is $5$ hours. If the separation between the earth and the satellite is increased to $4$ times the previous value, the new time period will become

speeds of $20\, m/s$ and $15\, m/s$ relative to the ground. The first train sounds a whistle of frequency $600\, Hz$. The frequency of the whistle heard by a passenger in the second train before the train meets, is (the speed of sound in air is 340 m/s)

With the increase in temperature, the angle of contact

A man drags a block through $10\, m$ on rough surface $(\mu = 0.5)$. A force of $\sqrt{3}$ kN acting at $30^{\circ}$ to the horizontal. The work done by applied force is

A force of $2\hat{i}+3\hat{j}+4\hat{k}$ $N$ acts on a body for $4$ second, produces a displacement of $\left(3\hat{i}+4\hat{j}+5\hat{k}\right)$$m$. The power used is

Twelve resistors each of resistance $16\,\Omega$ are connected in the circuit as shown. The net resistance between $A$ and $B$ is

A brick of mass $2\, kg$ slides down an incline of height 5m and angle $30^{\circ}$. If the coefficient of friction of the incline is $\frac{1}{ 2 \sqrt{3}}$ , the velocity of the block at the bottom of the incline is (Assume the acceleration due to gravity is $10\, m/s^2$)

A bag contains $2n$ coins out of which $n-1$ are unfair with heads on both sides and the remaining are fair. One coin is picked from the bag at random and tossed. If the probability that head falls in the toss is $\frac{41}{56}$, then the number of unfair coins in the bag is

The young's modulus of a wire of length $L$ and radius $r$ is $Y$ $N/m^{2}$. If the length and radius are reduced to $L/2$ and $r/2$, then its young's modulus will be

Mole fraction of the solute in a $1.00$ molal aqueous solution is

The electronic configuration of $Eu$ (Atomic $No. 63$), $Gd$ (Atomic $No. 64$) and $Tb$ (Atomic $No. 65$) are :

General formula of solid in zinc blende structure is:

Glycine in alkaline solution exists as______and migrates to__________.

If $a_{1}, a_{2}, a_{3}, \ldots, a_{n}$ are in A.P. where $a_{i}>0$ for all $i$, then $\frac{1}{\sqrt{a_{1}}+\sqrt{a_{2}}}+\frac{1}{\sqrt{a_{2}}+\sqrt{a_{3}}}+\ldots .+$ $\frac{1}{\sqrt{a_{n-1}}+\sqrt{a_{n}}}$ is?

The equation of the curve passing through the point $\left(a, -\frac{1}{a}\right)$ and satisfying the differential equation $y-x \frac{dy}{dx}=a\left(y^{2}+\frac{dy}{dx}\right)$ is

In order to solve the differential equation $x \cos x \frac{d y}{d x}+y(x \sin x+\cos x)=1$ the integrating factor is:

Equation of two straight lines are $\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}$ and $\frac{x-4}{5}=\frac{y-1}{2}=z$ .Then

The locus of the mid-point of a chord of the circle $x^2+ y^2 = 4$, which subtends a right angle at the origin is

Consider $\frac{x}{2}+\frac{y}{4} \ge1,$ and $\frac{x}{3}+\frac{y}{4} \le1, x, y \ge0.$ Then number of possible solutions are :

What is the slope of the normal at the point (at, 2at) of the parabola y = 4ax ?

In the reaction $2 PCl _{5} \rightleftharpoons PCl _{4}^{+}+ PCl _{6}^{-}$, the change in hybridisation is from