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  4. The product obtained, when acetophcnone is treated with zinc-amalgum in cone. HCl, is:

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Q. The product obtained, when acetophcnone is treated with zinc-amalgum in cone. $ HCl, $ is:

JIPMERJIPMER 1999

Solution:

Zinc amalgum/conc. HCl is an important reducing agent. Its reducing reaction is called Clemmensons reduction. It reduces keto group $ \left( \text{ }\,C==O \right) $ into methylene group $ \left( \text{ }\,C{{H}_{2}} \right) $ . Hence, acetophenone gives ethyl benzene on treating with Zn-Hg/cone. $ HCl $ .

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