HARDMCQ SINGLEJEE Mains ChemistryInorganic ChemistryCarboxylic Acids and DerivativesAchiever Section

When CH₂ = CH – COOH is reduced with LiAlH , the compound obtained will be:

A.CH₃ – CH₂ – COOH

B.CH₂ = CH – CH₂OH✓ Correct

C.CH₃—CH₂—CHO

D.CH₃ – CH₂ – CH₂ – OH

Explanation

4 LiAlH is a strong reducing agent and it will convert carbonyl compounds into alcohol after reduction. However, it will not reduce double bond to single bond. The reaction is as follows- 4 LiAlH 2 2 2 H C CH COOH H C CH CH OH → Thus, the correct option is (b) 2 2 CH CH CH OH

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