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Question

The isomerisation of 1−butyne to 2−butyne can be achieved by treatment with:

A
hydrochloric acid
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B
ammoniacal silver nitrate
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C
ammoniacal cuprous chloride
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D
ethanolic potassium hydroxide
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Solution

The correct option is D ethanolic potassium hydroxide
The isomerization of 1butyne to 2butyne can be achieved by treatment with ethanolic potassium hydroxide.

CH3CH2CCHethanolicKOH−−−−−−−−isomerisationCH3CCCH3
Note: The isomerisation of 2butyne to 1butyne can be achieved by treatment with NaNH2/liqNH3.

Option D is correct.

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