Question

Brass gets discoloured in air because of the presence of which of the following gases in air?

A. Oxygen
B. Hydrogen sulphide
C. Carbon dioxide
D. Nitrogen​

Answer 1

hydrogen sulphie i think write answer

Answer 2

HEY USER HERE IS YOUR ANSWER :-

Option B i.e hydrogen sulphide

HOpE It HELPS YOU !!!!!...........✌️✌️✌️