The normal value of acceleration due to gravity is

Entropy is the measurement of____?

Oxygen was discovered by

Cation formation is an____process?

Cation formation is an____?

Glass is made of the mixture of_____?

Glass is made of the mixture of?

The isotope of uranium capable of sustaining chain reactions is

_____ is used as filler in rubber tyres.

Production of chlorofluorocarbons (CFC) gas which is banned in India, was used in which of the following domestic products?

What is a mixture of potassium nitrate, powdered charcoal and sulphur called?