The ketone shown is refluxed with zinc amalgam and concentrated HCl. Which structure is the product?

AStructure A
BStructure B
CStructure C
DStructure D

Answer: C

The drawn compound is acetophenone. Clemmensen reduction (Zn-Hg/conc. HCl) converts C=O into CH2, giving ethylbenzene. The ring is not hydrogenated, the alcohol is not the end product and no dehydration occurs.

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