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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−yneX = But^{-2}-yne; Y = Hex^{-2}-yne

B

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

C

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

D

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

Correct Answer

Option A

Detailed Explanation

The reaction involves alkylation of acetylene to form but−2t^{-2}-yne and further alkylation to form hex−2x^{-2}-yne.

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