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Alcohols, Phenols and Ethers
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Reactions of alcohols: oxidation, esterification, dehydration, Lucas test
JEE Main level
Single correct option
Difficulty 2 of 3
ap029
Propane-1,2-diol is treated with
HIO
X
4
. The products are
A
two molecules of ethanal
B
methanal and ethanal
C
methanoic acid and ethanoic acid
D
methanal and propanone
Answer: B
Periodic acid cleaves the C-C bond between vicinal
CHOH
carbons. The
CH
X
2
OH
end becomes
HCHO
and the
CH
(
OH
)
CH
X
3
end becomes
CH
X
3
CHO
.
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