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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
    DIRECTIONS: On the basis of following diagram/picture answer the questions given below: Which portion of a ship shown below will rust the fastest?

    A) A

    B) B and C

    C) C

    D) A, B and C will get rust equally

    Correct Answer: C

    Solution :

    As the portion C is in direct contact with saline sea water.


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