Clemmenson reduction of ketone is carried out in the presence of :

L i A l H_{4}

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Z n - H g / H C l

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1. N H_{2} - N H_{2}, 2. Ethylene glycol with K O H

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H_{2} with Pt as catalyst

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Solution

The correct option is B $Z n - H g / H C l$
Zn-Hg with conc. HCl reduces ketone to respective alkane, i.e $C = O$ of ketone gets reduced to $> C H_{2}$ group. The reaction is called Clemmensen reduction. For example:
Hence, the correct answer is option (b).

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