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

  • question_answer
    When magnesium is burnt, heat and light are produced. The burning of magnesium is a:

    A) reversible change

    B) physical change

    C) chemical and exothermic change

    D) chemical and endothermic change

    Correct Answer: C

    Solution :

    A change accompanied by evolution of heat is an exothermic change.


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