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(C) Acetylene $(HC \equiv CH)$ is acidic in nature due to the $sp$ hybridized carbon atoms. $1$. Treatment with $NaNH_2$ (a strong base) removes the a

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Both of these

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(C) Acetylene $(HC \equiv CH)$ is acidic in nature due to the $sp$ hybridized carbon atoms. $1$. Treatment with $NaNH_2$ (a strong base) removes the acidic proton to form sodium acetylide $(HC \equiv C^- Na^+)$,which then reacts with an alkyl halide $(R - X)$ via an $S_N2$ mechanism to form a higher alkyne $(HC \equiv C - R)$. $2$. Alternatively,treatment with a Grignard reagent $(R - Mg - X)$ also removes the acidic proton to form the acetylide,which subsequently reacts with an alkyl halide $(R - X)$ to yield a higher alkyne. Therefore,both methods are effective for the synthesis of higher alkynes.

Which series of reagents can be used to convert acetylene into higher alkynes?

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