Q65 / 180 · NEET 2016 (Phase 1) · Chemistry

In the reaction

X and Y are:

Correct answer
A
X = 1 - Butyne ; Y = 3 - Hexyne
B
X = 2 - Butyne ; Y = 3 - Hexyne
C
X = 2 - Butyne ; Y = 2 - Hexyne
D
X = 1 - Butyne ; Y = 2 - Hexyne

Solution

Terminal alkynes on reaction with ${NaNH}_{2} / liq . {NH}_{3}$ results in the formation of sodium acetylides, and these sodium acetylides undergo nucleophilic substitution react with alkyl halides to form higher alkynes.

Hence, the correct answer is option: 'A'.

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In the reaction X and Y are:

Solution

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In the reaction

X and Y are: