List of practice Questions

The twinkling effect of star light is due to

A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the first minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of slit is

A ray of light passes through an equilateral prism such that the angle of incidence is equal to the angle of emergence and the latter is equal to $ \frac{3}{4} $ the angle of prism. The angle of deviation is

The compound that can exhibit geometrical isomerism is

Chlorination of which of the following substance is a substitution reaction?

The process of conversion of ozone into oxygen $\left(2O_{3} \longrightarrow 3O_{2}\right)$ involves following steps $O _{3} {<=>[{\text { Fast }}]} O _{2}+ O$ $O + O _{3} {->[{\text { Slow }}]} 2 O _{2}$ The rate law expression for this process is

Which of the following acts as a reducing agent to reduce $ W{{O}_{3}},Mo{{O}_{3}} $ and $ Ge{{O}_{2}} $ into metals?

Consider the following hypothetical reaction. $A+B \rightleftharpoons C+D ; \,\,\,K_{c}=1 \times 10^{-4}$ Which of the following statements is true for this reaction ? In this reaction,

Dissolution of ammonium chloride in water leads to a cooling sensation. At constant temperature, this process is accompanied by

Natural rubber is

Process used for amplification or multiplication of DNA for finger printing is

Hypersecretion of mineralocorticoids leads to

The banding patterns of chromosomes $3$ and $6$ of man and chimpanzee show that

Ommatidia serve the purpose of photo reception in

Pressure sensitive receptors in the dermis are

Protistan protozoan having nuclear dimorphism is

Renal portal system carries blood

Colle's fracture is associated with

Frenulum is

Black water fever is caused by

Which of the following is an example of man-made ecosystem?

Which one of the following is the American poultry breed?

Which of the following carbocations will be most stable ?

Which is the correct sequence of arrangement of types of WBC in decreasing order in terms of number per $ m{{m}^{3}} $ of human blood?

Which is not applicable to the biological species concept?