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

  • question_answer
    Which of the following is a chemical change?

    A)  Explosion of crackers

    B)  Magnetization of iron

    C)  Charging of a battery

    D)  Both (B) and (C)

    Correct Answer: A

    Solution :

    Explosion of crackers is a chemical change as it results in the formation of new substances and it is irreversible.


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