Chemistry - STEREO ISOMERISM Question with Solution | TestHub

A is correct because structures W and Y are non-superimposable, non-mirror image stereoisomers, making them diastereomers.

B is correct because viewing the conformation of projection X along its central carbon-carbon bond matches the exact spatial arrangement shown in Newman projection Z.

C is correct because molecules W, X, Y, and Z lack any plane or center of symmetry, rendering them chiral and optically active.

D is incorrect because Y and Z do not possess an internal plane of symmetry or identical chiral centers required to be classified as meso.