8th Class Science Materials : Metals and Non-metals Question Bank Metals and Non-metals

  • question_answer
    Read the given statements and select the correct option.
    Statement 1: Silver objects become green and lose their shine with the passage of time.
    Statement 2: Silver reacts with carbon dioxide and moisture present in the atmosphere.

    A)  Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

    B)  Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

    C)  Statement 1 is true and statement 2 is false.

    D)  Both statements 1 and 2 are false.

    Correct Answer: D

    Solution :

    Silver objects become blackened and lose their shine with the passage of time. This happens due to reaction of silver with hydrogen sulphide gas present in the atmosphere.


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