List of practice Questions

Glycerol at $ 530\,K $ reacts with oxalic acid to produce

The focal length of objective and eye piece of a telescope are $ {{f}_{0}} $ and $ {{f}_{e}} $ respectively. Then its magnification will be:

If the critical angle for total internal reflection from a medium to vacuum is $ 30{}^\circ $ , then the speed of light in the medium is

A prism has a refracting angle of $ 60{}^\circ $ . If it produces a minimum deviation of $ 30{}^\circ $ in an incident ray, the angle of incidence is

A liquid has only

The ratio of radii of two spheres of same material is $1 : 4$, then the ratio of their heat capacities is

A solid sphere is rolling without slipping on a horizontal surface. The ratio of its rotational kinetic energy and translational kinetic energy is:

Ethylene gas is used for

During dehydration of alcohols to alkenes by heating with concentrated $H _{2} SO _{4}$ the initiation step is :

DNA is a polymer of

Which of the following is free-living, aerobic and non-photosynthetic nitrogen fixing bacterium?

In the animal body bold bank is :

Drinking of alcohol affects :

L.S.D. is obtained from :

Spinal cord is protected by :

Cotton fibre is

Binary fission is a form of

Enzyme used in DNA replication is

Pyruvic acid is a product of

Histones are

Histones are Meristematic tissues are composed of

Bernoulli's equation is a consequence of conservation of

At higher temperature, iodoform reaction is given by

The stars twinkle while the planets do not. The stars are much bigger in size than the planets.

Solution of $Na_2CrO_4$ in water is coloured. Oxidation state of $Cr$ in $Na_2CrO_4$ is $+6$.