1.

.In the following, a statement of assertion (A) and its reason ( R ) is given below. Choose the correct option. Assertion: Burning of coal is a physical change. Reason: When coal is burnt, the chief component, carbon is changed to carbon dioxide. This process cannot be reversed. (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​

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ANSWER:

a both a and b are TRUE and R is the CORRECT explanation of A



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