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

Hello Praneeth,

Brass gets discoloured in air because of the presence of Hydrogen sulphide gas in air.

Therefore option B.) is correct.

hope it helps u........

Answer 2

B. Hydrogen sulphide
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Brass gets discoloured in air because of the presence of hydrogen sulphide gases in air.

Brass is a bright yellow-coloured metal made from copper and zinc.

Hydrogen sulfide (H2S) is a colorless, poisonous, corrosive, flammable and extremely hazardous gas with a smell of bad eggs.