निम्नलिखित

Potassium Permanganate is used for purifying drinking water, because it – 

What is the boiling point of water at sea level.

Sodium Chloride is an example of

Atomic number of an element is equal to the number of ____ in the nucleus.

Which of the following is the best sources for Vitamin D are –

Match the following Functional group with their respective Chemical name.

The important ore of aluminium is-

What is the total number of carbon atoms in a molecule of butane?

Which element is used in pencil leads?

Litmus paper, used to test pH levels, is derived from which organism?