Question

Identify the false statement regarding chirality from the following.

• A. \(SN^1\) reaction yields 1:1 mixture of both enantiomers
• B. A recemic mixture shows zero dipole rotation
• C. Enantiomers are superimposable mirror images of each other
• D. The product obtained by \(SN^2\) reaction of haloalkane having chirality at the reactive site shows inversion of configuration

Hint:

Enantiomers are non-superimposable mirror images, so the statement calling them superimposable is false.

Answer 1

The Correct Option is C

Step 1: Define the terms.
Enantiomers are a pair of stereoisomers that are mirror images and cannot be superimposed, like left and right hands.

Step 2: Test each claim.
(A) $S_N1$ gives a planar carbocation, so attack on both faces equally gives racemisation: true. (B) Equal and opposite rotations cancel in a racemic mixture: true. (D) $S_N2$ is a one-step back-side attack, so the product has inverted configuration: true.

Step 3: Find the error.
(C) says enantiomers are superimposable. That would make them identical molecules, not enantiomers. This is the false statement.

Final Answer:
Option (C) is false. \[ \boxed{\text{(C)}} \]