1.

Assertion(A): When copper carbonate is heated strongly ,the green colour is changed into black colour Reason(R ):The colour change is due to the decomposition of copper carbonate into copper oxide.

Answer»

Both (A)and ( R) CORRECT
(A) is correct but (R ) is WRONG
Both (A) and (R ) are wrong
(A) is wrong but (R ) is correct

Answer :A


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