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Aldehydes, Ketones and Carboxylic Acids
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Oxidation and reduction of carbonyls (Clemmensen, Wolff-Kishner, Tollens, Fehling)
NEET level
Single correct option
Difficulty 1 of 3
co142
Propanal,
CH
X
3
CH
X
2
CHO
, is reduced with
LiAlH
X
4
in dry ether followed by aqueous work-up. The product is
A
propan-2-ol
B
propan-1-ol
C
propanoic acid
D
propane
Answer: B
Hydride adds to the carbonyl carbon of an aldehyde to give a primary alkoxide, which on hydrolysis gives propan-1-ol.
Practice Aldehydes, Ketones and Carboxylic Acids
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