List of top Science Questions

The autotrophic mode of nutrition requires:

In which of the following plants did Mendel perform his experiments on inheritance?

The bond present in chlorine molecules is:

A solution turns red litmus into blue. The possible pH value of this solution is:

The reactions in which new compounds are formed by exchange of ions, are called:

The function of xylem in plants is:

The alkene in the following is:

Useful substance in making water bacteria free is:

Which of the following metals produces hydrogen gas with cold water?

Which of the following metals produces hydrogen gas with cold water?

On which of the following does the resistance of an electrical conductor not depend?

In which combination the four resistors be connected to have minimum resultant resistance?

One needs the help of which of the following rules to know the direction of the magnetic field produced due to a current carrying conductor?

The alkene in the following is:

The sun appears whitish:

The unit of the power of the lens is:

To have a real and enlarged image of an object by a concave mirror, the position of the object should be:

When a beam of white light falls on the surface of a triangular prism of glass, it splits, after emerging out from the prism, into various colours with different deviations. Which colour has maximum deviation?

The commercial unit of electric energy is commonly known as ‘unit’. Write its actual name and establish the relationship between this unit and the SI unit of energy.

Give the structure and function of alveoli in human respiratory system.

Explain by giving one example each:
(1) Unisexual flowers
(2) Bisexual flowers

List any two methods by which the solid wastes generated in urban areas can be safely disposed off.

Assertion (A) : Each human trait is influenced by both paternal and maternal DNA.
Reason (R) : As compared to the father, the mother contributes more amount of genetic material to the child.