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

  • question_answer
    Karuna wrapped some green gram pulses in a wet cotton cloth and when she observed them after a couple of days, she found small white growths on them. What could be this change?

    A)  Physical change

    B)  Temporary change

    C)  Chemical change

    D)  Periodic change

    Correct Answer: C

    Solution :

    Pulses germinate undergoing several changes. During the chemical change, physical changes also takes place. The change is irreversible. Hence, it is a chemical change.


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