List of practice Questions

In order to protect, iron from corrosion, the iron is coated with

Phenol undergoes Kolbe?? reaction whereas ethanol does not. Phenoxide ion is more basic than ethoxide ion.

A normal human eye can clearly see all the objects beyond a certain minimum distance. The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent.

Anthesis is a phenomenon which refers to

An intrinsic semiconductor, at the absolute zero temperature, behaves like a/an

Cis-trans test is related with

Hominids originated during

Meroblastic cleavage refers to which type of division of eggs ?

During muscle contraction actin and myosin form

Inheritance of ABO blood groups illustrates

Stomach in vertebrates is the chief site for digestion of

Which of the following does not exist?

Which of the following species, is planar?

All elements in $ \text{IIIA} $ group, have:

Copper sulphate dissolves in ammonical solution to give deep blue colour. The colour is due to the formation of:

Which of the following is the main factor of desertification?

In the case of forward biasing of p-n junction, which one of the following figures correctly depicts the direction of flow of carriers?

In split genes, the coding sequences are called

The power factor varies between :

The motion of a rocket is based on the principle of conservation of

The logic circuit given in the figure performs the logic operation

A metal rod at a temperature of $150^{\circ} C$, radiates energy at a rate of $20\, W$. If its temperature is increased to $300^{\circ} C$, then it will radiate at the rate of

The velocity of photons is proportional to (where $\upsilon$ = frequency)

Woody perennial climbers are commonly called

The bond angle around the atom which uses $sp^2$ hybrid orbitals is