Which is the first state in the country to implement blindness control policy aimed at right to site vision?

Which one of the following is not a greenhouse gas? 

A powerful eye irritant present in smog is

“Firefighting clothes” are made from

Which of the following is used to increase the antiknocking property of petrol?

The chief source of naphthalene is 

Find the odd one:

The electronic configuration of an atom having atomic number 20 is 

Alcoholic (OH) group can be identified by

The mass number of a nucleus is

Identify the metal which is nontoxic in nature.