HARDMCQ SINGLEIChO (Chemistry Olympiad)Inorganic 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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