List of practice Questions

Curie-Weiss law is obeyed by iron at a temperature ...........

The conjugate acid of $NH_{3}$ ion is:

Dimethyl glyoxime gives a red precipitate with $Ni ^{2+}$, which is used for its detection. To get this precipitate readily the best $pH$ range is

For the reaction, $ {CO(g) + Cl2(g) <=> COCl2(g)}$ the $\frac{K_{p}}{K_{c}}$ is equal to

What is the equilibrium expression for the reaction $ {P_{4(s)} +5O_{2(g)} <=> P4O_{10(s)}}$ ?

The solubility product of $Ag _{2} CrO _{4}$ is $32 \times 10^{-12}$. What is the concentration of $CrO _{4}^{2-}$ ions in that solution (in $g$ ions $\left.L^{-1}\right)$ ?

A stone tied to one end of spring $80\,cm$ long is whirled in a horizontal circle with a constant speed. If stone makes $25 $ revolutions in $14 \sec$, the magnitude of acceleration of stone is :

A motorcycle is going on an over bridge of radius $R$. The driver maintains a constant speed. As the motorcycle is ascending on the over bridge, the normal force on it

A bullet of mass $0.01$ kg is fired from a rifle of mass $10$ kg with a speed of $200$ m/sec. The recoil speed of the rifle is

For a projectile on the horizontal surface of a planet $ y=8t-5t^{2} \, m$ shows height and $ x=8\,t \, m$ shows the horizontal distance, then the velocity with which the projectile is projected is

Swim bladder is present in:

Main function of glomerulus is :

Amount of saliva secreted daily in human is

Among the following the dissociation constant is highest for

Besides proteins ribosomes contain :

The species listed in Red Data Book are

The Law of Limiting Factors was proposed by ______

When light is incident on a diffraction grating the zero order principal maximum will be _____

A gene of operon which synthesizes a repressor protein is___________

Acceleration due to gravity is $ g $ on the surface of the earth. Then the value of the acceleration due to gravity at a height of $ 32\, km $ above earths surface is: (Assume radius of earth to be 6400 km)

If vibration of string is to be two times then tension in the string must be made :

We wish to see inside an atom. Assuming the atom to have a diameter of $100\, pm$, this means that one must be able to resolve a width of say $10\, pm$. If an electron microscope is used, the minimum electron energy required is about:

The first phylogenetic system of plant classification was proposed by

Which of the following is not considered as an organometallic compound?

The materials suitable for making electromagnets should have