Answered

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

AOxygen
BHydrogen sulphide
CCarbon dioxide
DNitrogen

Verified Answer :

maimunaaj
BBecause of the presence of hydrogen sulphide in Brass, it combines with oxygen in air and form water, evaporates. So remained sulphide is colourless in air .So Brass gets discoloured in the air.

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