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NEET2016Chemistry-Organic Chemistry

NEET 2016 Chemistry Alkylation Reactions MCQ Question

Type: MCQ-conceptual-Hard-Class 11

In the reaction, H–C≡C–H i. NaNH₂ / ii. CH₃CH₂Br → X i. NaNH₂ / ii. CH₃CH₂Br → Y X and Y are

A

$X = But^{-2}-yne; Y = Hex^{-2}-yne$

B

$X = But^{-1}-yne; Y = Hex^{-2}-yne$

C

$X = But^{-1}-yne; Y = Hex^{-3}-yne$

D

$X = But^{-2}-yne; Y = Hex^{-3}-yne$

Correct Answer

Option A

Detailed Explanation

The reaction involves alkylation of acetylene to form bu $t^{-2}$ -yne and further alkylation to form he $x^{-2}$ -yne.

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