In the following reaction, A and B respectively are : A HBr C_2H_5Br B A

MHT CET Chemistry question

In the following reaction, A and B respectively are :

(A) and alcoholic Correct
(B) and aq.
(C) and aq.Correct
(D) and

Answer: (A),(C)

Solution

In (a) ethene + HBr gives ethyl bromide and alcoholic KOH eliminates HBr to regenerate ethene; in (c) ethanol + HBr gives ethyl bromide and aq. KOH substitutes Br by OH to regenerate ethanol; both cycles close. In (b)

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Question ID VK-043308