LPG used as domestic fuel chiefly contains:

Cetane number is used as a quality parameter mainly for which of the following?

Which one of the following is used as an explosive?

The main component of Liquid Petroleum Gas (LPG) are :

To avoid ‘knocking’ of the engine of a car, which one of the following is used as an anti-knocking agent?

Hydrogen fuel cell vehicles produce one of the following as 'exhaust'-