List of practice Questions

Mixture of iodine and Sodium Sulphate is separated by .........

A compound has fcc structure. If density of unit cell is 3.4 g cm$^{-3$, what is the edge length of unit cell? (Molar mass = 98-99)}

A sample of gas absorbs 4000 kJ of heat and surrounding does 2000 J of work on sample. What is the value of \(\Delta U\)?

Identify the symbol used for water according to Dalton's atomic theory.

Which of the following alcohols needs acidic KMnO\(_4\) to convert it into aldehyde or ketone?

How many electrons are involved in the reaction when 0.40 F of electricity is passed through an electrolytic solution?

Which among the following amino acids has the lowest molar mass?

Two vectors of same magnitude have a resultant equal to either of the two vectors. The angle between two vectors is

A charge \( q \) moves with velocity \( \vec{v} \) through electric field \( \vec{E} \) as well as magnetic field \( \vec{B} \). Then the force acting on it is

The density of a metal at normal pressure \( P \) is \( \rho \). When it is subjected to an excess pressure, the density becomes \( \rho' \). If \( K \) is the bulk modulus of the metal, then the ratio \( \frac{\rho'}{\rho} \) is

A small metal sphere of mass \( M \) and density \( \rho_1 \), when dropped in a jar filled with liquid moves with terminal velocity after some time. The viscous force acting on the sphere is
\textit{(where \( \rho_2 \) is the density of liquid, \( g \) is the gravitational acceleration)}

Which among the following methods is NOT suitable for the preparation of alkyl chlorides?

Which among the following is an example of allylic alcohol?

Let force \( F = A \sin(Ct) + B \cos(Dx) \) where \( x \) and \( t \) are displacement and time respectively. The dimensions of \( \frac{C}{D} \) are same as dimensions of

In diffraction experiment, from a single slit, the angular width of the central maxima does NOT depend upon

A vehicle of mass \( M \) is moving with momentum \( P \) on a rough horizontal road. The coefficient of friction between the tyres and the horizontal road is \( \mu \). The stopping distance is
\textit{(g = acceleration due to gravity)}

For a particle performing simple harmonic motion, when displacement is \( x \), the potential energy and restoring force acting on it is denoted by \( E \) and \( F \) respectively. The relation between \( x \), \( E \), and \( F \) is

A bullet of mass \( m \) moving with velocity \( v \) is fired into a wooden block of mass \( M \). If the bullet remains embedded in the block, the final velocity of the system is

An alternating e.m.f. of 0.2 V is applied across an LCR series circuit having \( R = 4 \, \Omega \), \( C = 80 \, \mu \text{F} \), and \( L = 200 \, \text{mH} \). At resonance, the voltage drop across the inductor is

Surface density of charge on a charged conducting sphere of radius \( R \) in terms of electric intensity \( E \) at a distance \( r \) in free space is
\textit{(where \( r>R, \, \epsilon_0 \) is permittivity of free space)}

For a gas, \( \frac{R}{C_V} = 0.4 \), where \( R \) is universal gas constant and \( C_V \) is the molar specific heat at constant volume. The gas is made up of molecules which are

An electron (\( e \)) is revolving in a circular orbit of radius \( r \) in a hydrogen atom. The angular momentum \( M \) of the electron is
\textit{(where \( M \) = magnetic dipole moment associated with it and \( m \) = mass of the electron)}

Two identical bar magnets each of magnetic moment \( M \), separated by some distance are kept perpendicular to each other. The magnetic induction at a point at the same distance \( d \) from the centre of magnets, is
\textit{( \( \mu_0 \) = permeability of free space)}

The maximum velocity of the photoelectron emitted by the metal surface is \( V \). Charge and mass of the photoelectron are denoted by \( e \) and \( m \) respectively. The stopping potential in volt is

When a photon enters glass from air, which one of the following quantity does NOT change?