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    Question

    Which of the following gases in air is responsible for

    the discoloration of Brass?
    A Hydrogen Sulphide Correct Answer Incorrect Answer
    B Carbon Dioxide Correct Answer Incorrect Answer
    C Nitrogen Correct Answer Incorrect Answer
    D Carbon Monoxide Correct Answer Incorrect Answer

    Solution

    Brass gets discolored in the air due to the presence of hydrogen sulphide. It is due to the presence of the mixture of hydrogen and sulphide that makes Brass discolored.

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