1.

Assertion (A):The reaction of calcium oxide with is an exothermic reaction. Reason(R ):The reaction is accompanied by a hissing sound and formation of bubbles leading to the absorption of considerable amount of heat.

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 :C


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