NEET2020Chemistry-Hydrocarbons
NEET 2020 Chemistry Wurtz Reaction MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following alkane cannot be made in good yield by Wurtz reaction?
A
n-Heptane
B
n-Butane
C
n-Hexane
D
2,³⁻Dimethylbutane
Correct Answer
Option A
Detailed Explanation
The Wurtz reaction works best with the same alkyl halide (producing symmetric even-carbon alkanes). n-Heptane (7 carbons, odd) cannot be made in good yield because it requires coupling two different alkyl halides (e.g., C3 + C4), producing a mixture of C6, C7, and C8 alkanes. The correct answer is A.
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