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Chemistry-Alkanes

NEET Chemistry Alkanes Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 11

Assertion (A): Alkanes can have an infinite number of conformations due to free rotation about C-C single bonds.

Reason (R): The rotation around a C-C single bond is completely free without any energy barrier.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option C

Detailed Explanation

According to the NCERT context, while alkanes can have infinite conformations due to rotation around C-C single bonds, this rotation is hindered by a small energy barrier, making R false.

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