2. Questions Bank
  3. 7th Class
  4. Science
  5. Physical and Chemical Changes

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

  • question_answer
    DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Tearing of a paper sheet into small pieces is a chemical change. Reason (R): It is not possible to rejoin small pieces of paper to get back the original paper sheet.

    A) Both A and R are true and R is the correct explanation of A.

    B) Both A and R are true but R is not the correct explanation of A.

    C) A is true but R is false.

    D) A is false but R is true.

    Correct Answer: D

    Solution :

    Assertion A is false. Reason R is true. Tearing of a paper sheet into small pieces is a physical change.


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