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

  • question_answer
    Direction:  Look at the following diagram carefully and answer the following questions: Rusting of iron nail will be faster in which of following test tube.

    A) A                                 

    B) Both A and B

    C) B                                 

    D) Equal in A, B and C

    Correct Answer: C

    Solution :

    Rusting of iron nail will be faster in test tube B as it is in direct contact with water and air.


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