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  3. 7th Class
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  5. Physical and Chemical Changes

7th Class Science Physical and Chemical Changes Question Bank Physical and Chemical Changes

  • question_answer
    A metal when left exposed to the atmosphere for some time gets coated with green basic carbonate. The metal in question is

    A) Copper          

    B) Nickel

    C) Silver                          

    D) Zinc

    Correct Answer: A

    Solution :

    Copper           


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