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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
    Which of the following statement is true about chemical equation?

    A) Mass is conserved

    B) Atoms are conserved

    C) Mass as well as atoms are conserved

    D) Molecules are conserved

    Correct Answer: C

    Solution :

    Mass as well as atoms are conserved


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