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Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure.

1. (a) C = CH - C || CH3 O
2. (b) CH - CH2 - C || CH3 O
3. (c) CH3CH3 | C - C || OH OH
4. (d) CH - CH || OH OH

Correct answer: (a) C = CH - C || CH3 O

Solution

Acetophenone reacts with sodium ethoxide (C2H5ONa) to form an enolate ion, which stabilizes into the compound with the structure C=CH-C||O-CH3. This is due to the keto-enol tautomerism and the base-induced enolate formation.

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