Question

Q.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

Answer:

hydrogen sulphide is the answer

Explanation:

because the presence of mixture of hydrogen and sulphide and brass is a type of substance which has a color very light and mixture is non temperature so it gets discolored.

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Answer 2

Answer:

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Explanation:

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