Question

Select the incorrect option from the following.

(a) Fischer projections are two dimensional representations of three dimensional molecules

(b) A molecule is achiral if it cannot be superimposed on its mirror reflection

(c) E and Z notations are based on Cahn, Ingold and Prelog priority system

(d) Chiral molecules which are non-superimposable mirror images of each other are enantiomers

This question was posed to me during an interview.

I would like to ask this question from E and Z Nomenclature of Geometric Isomers topic in portion Structure and Stereostructure of Molecules of Engineering Chemistry I

Answer 1

The correct choice is (b) A molecule is achiral if it cannot be superimposed on its mirror reflection

To elaborate: A molecule is achiral if it is superimposable on its mirror reflection. All the other options are correct.