brass gets discoloured in air because of the presence of which of the | Examsbook

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2135 0

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

1
Hydrogen sulphide
2
Oxygen
3
Nitrogen
4
Carbon dioxide

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Answer : 1. "Hydrogen sulphide"
Explanation :
Answer: A) Hydrogen sulphide Explanation:

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