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Question

CH3CH2CCHABCH3CCCH3
A and B are :

A
alcoholic KOH and NaNH2
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B
NaNH2 and alcoholic KOH
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C
NaNH2 and Lindlar catalyst
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D
Lindlar catalyst and NaNH2
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Solution

The correct option is A alcoholic KOH and NaNH2
In the rearrangement reaction between 1-butyne and 2-butyne, A and B are alcoholic KOH and NaNH2
In presence of alcoholic KOH, 1-butyne isomerizes to 2-butyne.
In presence of sodamide, 2-butyne isomerizes to 1-butyne.

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