Water gas is the mixture

The chiefsource for the production of nitrogeneous fertilizers is : 

Spirit in contact with body gives cool sensation because it is:

An electric iron has a heating element made of:

Alcoholic (OH) group can be identified by

The element used for making solar cells is

Which of the following processes is used for the production of Biodiesel? 

Taj Mahal is greatly affected due to: 

The Bhopal tragedy was caused by the gas

One property of ammonia is 

Conduction band electrons have more mobility than holes because they