GK
BASIC GENERAL KNOWLEDGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Brass gets discoloured in air because of the presence of which of the following gases in air?
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Oxygen
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Hydrogen sulphide
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Carbon dioxide
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Nitrogen
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Explanation:
Detailed explanation-1: -Therefore, the correct option is (B) Hydrogen sulphide.
Detailed explanation-2: -Brass, like silver, tarnishes because its metal components-copper and zinc-are exposed to oxygen. This is a natural process. The oils in your skin also have an effect on brass, so the more an item is used, the more corrosion or tarnish can occur.
There is 1 question to complete.