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Q. The compound Y is...


Q. The compound Y is

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
To determine the structure of compound (Y)
(i) Addition of `H_(2)O` to phenylacetylene in presence of `HgSO_(4),H_(2)SO_(4)` gives acetophenone `(C_(6)H_(5)COCH_(3))`.
(ii) Addition of grignard reagent `(EtMgBr)` to acetophenone followed by hydrolysis gives a `3^(@)` alcohol, say I.
(iii) `3^(@)` alcohol (I) on heating with an acid undergoes dehydration in accordance with saytzeff rule to afford a stable alkene (Y). the structure of the alkene (Y) is deduced as follows?
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