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Question: An alkene X is obtained by dehydration of an alcohol Y, X on ozonolysis gives two molecules of ethan...

An alkene X is obtained by dehydration of an alcohol Y, X on ozonolysis gives two molecules of ethanal for every molecule of alkene, X and Y are

A

X = 3-hexene, Y = 3-hexanol

B

X = 2-butene, Y =2- butanol

C

X = 1-butene, Y=1-butanol

D

X=1-hexane, Y=1hexanol

Answer

X = 2-butene, Y =2- butanol

Explanation

Solution

: Products of ozonolysis:

CH3−C∣H=+O=C∣H−CH3→CH3CH=CH2−buteneCH3CH_{3} - \overset{H}{\overset{|}{C}} = + O = \overset{H}{\overset{|}{C}} - CH_{3} \rightarrow CH\underset{2 - butene}{3CH = CH}CH_{3}2-Butene is obtained by dehydration of 2-butanol

CH3−CH2−CH∣OH−CH3→H+CH_{3} - CH_{2} - \underset{OH}{\underset{|}{CH}} - CH_{3}\overset{\quad H^{+}\quad}{\rightarrow}

CH3−CH=CH−CH3+H2OCH_{3} - CH = CH - CH_{3} + H_{2}O