Reduction of ketones cannot be carried out with which of the following reagents ?

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Hydrogen in presence of palladium in Barium sulphate and quinoline

Sodium borohydride or Lithium aluminium hydride

Hydrazine and KOH in ethylene glycol

Zinc amalgam and concentrated HCl

answer is D.

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Detailed Solution

Reduction of ketones cannot be carried out with hydrogen in presence of palladium in Barium sulphate and quinoline.
This reagent is Lindlar's catalyst and is used for selective reduction of alkyne to trans alkene.
In Clemmensen reduction, zinc amalgam and concentrated HCl converts carbonyl group to methylene group.
In Wolf Kishner reduction, Hydrazine and KOH in ethylene glycol converts carbonyl group to methylene group.
Sodium borohydride or Lithium Aluminium hydride reduces keto groups to alcohols.

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