Question

6. In this question two statements are given- one labeled Assertion (A) and the other
labeled Reason(R). Select the correct answer to the question from the codes (i), (ii),
(iii) and (iv) as given below.
(i) Both A and Rare true and Ris correct explanation of the assertion.
(ii) Both A and Rare true but Ris not the correct explanation of the assertion.
(iii) A is true but R is false.
(iv) A is false but R is true.
Assertion: When calcium carbonate is heated, it decomposes to give calcium oxide
and carbon dioxide.
Reason: The decomposition reaction takes place on application of heat; therefore,
it's an endothermic reaction.​

Answer 1

Explanation:

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