Question

Nitric acid obtained in the laboratory is slightly yellow. The yellow colour of the acid is removed by addition of excess of oxygen gas.

• A. True
• B. False

Answer 1

The correct option is B

False

Nitric acid obtained in the laboratory is slightly yellow. The yellow colour of the acid is removed by addition of an excess of water. Nitrogen gas dissolves in water and thus the yellow colour of the acid is removed. The reaction is the reverse of the decomposition of nitric acid.