Question:hard
An alkyne \(X\) \((C_4H_6)\) does not form sodium alkynide. Reaction of \(X\) with HBr gave \(Y\). Another reaction of \(X\) with \(Na/\text{liq. }NH_3\) gave \(Z\). Identify \(Y\) and \(Z\).
An alkyne \(X\) \((C_4H_6)\) does not form sodium alkynide. Reaction of \(X\) with HBr gave \(Y\). Another reaction of \(X\) with \(Na/\text{liq. }NH_3\) gave \(Z\). Identify \(Y\) and \(Z\).
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Terminal alkynes:
\[
RC\equiv CH
\]
form sodium alkynides because they contain acidic hydrogen.
\[
Na/\text{liq. }NH_3
\]
reduces alkynes to trans-alkenes.
Addition of excess HX to alkynes gives geminal dihalides.
Updated On: Jul 29, 2026
- \(Y=\) geminal dibromide ; \(Z=\) non-polar compound
- \(Y=\) geminal dibromide ; \(Z=\) polar compound
- \(Y=\) vicinal dibromide ; \(Z=\) polar compound
- \(Y=\) vicinal dibromide ; \(Z=\) non-polar compound
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The Correct Option is A
Solution and Explanation
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