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Reduction of carboxylic acids - class-XII
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$PhCOOH\xrightarrow{DIBALH} $
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A
$PhCHO$
💡 Explanation:
Benzoic acid on reduction with di-isobutyl aluminium hydride (DIBALH) gives benzaldehyde.
$\displaystyle PhCOOH \xrightarrow {DIBALH} PhCHO $
Di-isobutyl aluminium hydride (DIBALH) is a reducing agent. It reduces carboxylic acids to aldehydes.