6th Class Science Changes Around us Question Bank Changes Around us

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    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: The explosion of a fire cracker sis a physical changes. Reason R: A physical change is a reversible change.

    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 :

        In it Assertion is false because the explosion of fire cracker is a chemical change. When a fire cracker explodes, new chemical substances are formed. Reason is true.


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