Interconversion of terminal to internal alkyne and vice versa takes place by the following reagents (A) and (B).
Regents (A) and (B) are

N a N H_{2}

and alc. KOH

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alc. KOH and

N a N H_{2}

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alc. KOH and P-2 catalyst

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N a N H_{2}

and Lindlar's catalyst

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Solution

The correct option is A $N a N H_{2}$ and alc. KOH
The reagents (A) and (B) are $N a N H_{2}$ and alc $K O H$ .
Thus, sodaamide converts internal alkyne to terminal alkyne and alc $K O H$ converts
terminal alkyne to internal alkyne.

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