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Question

Wilkinson’s catalyst is used for

A
Hydrogenation of oils
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B
Hydrogenation of alkynes
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C
Hydrogenation of alkenes
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D
Polymerisation of alkenes
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Solution

The correct option is C Hydrogenation of alkenes
Wilkinson's catalyst is [RhCl(PPh3)3]. Wilkinson's catalyst is used for the conversion of alkenes to alkanes.

The mechanism of this reaction involves the initial dissociation of one or two triphenylphosphine ligands to give 14- or 12-electron complexes, respectively, followed by oxidative addition of H2 to the metal.

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