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

  • question_answer
    Which of the following statements is correct?

    A) Cutting of wood into pieces is a chemical change.

    B) Conversion of manure from leaves is a physical change.

    C) Iron pipes coated with zinc do not rust easily.

    D) All of the above

    Correct Answer: C

    Solution :

    Iron pipes coated with zinc do not rust easily.


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