alleryReduction of aldehyde RCHO by NaBH₄ gives:
ARCOOH
BR-CH₂-OH (primary alcohol)
CNo product
DR-CH=CH-R
Answer & Solution
Correct answer: B. R-CH₂-OH (primary alcohol)
NaBH₄ (mild reducer) reduces aldehyde to primary alcohol via H⁻ addition.
LiAlH₄ (stronger) reduces both aldehydes and ketones.
Ketones reduce to secondary alcohols.
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