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Question

In the given reaction: CH2=CHCHO CH2=CHCH2OH in the presence of X, what will be X:

A
H2/Ni/
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B
PtH2
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C
NaBH4
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D
H2 Wilkinson Catalyst
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Solution

The correct option is C NaBH4
NaBH4 reduces only carbonyl group and has no effect on other reducing groups.
LiAlH4 also reduces only carbonyl group but if the compounds are α,β unsaturated carbonyl compounds then the double bond also undergoes reduction.

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