Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Statement A is correct: Compound X has exactly 5 stereoisomers, consisting of 3 meso forms (achiral) and 1 pair of enantiomers (chiral).

Statement B is incorrect: The pair of enantiomers is chiral and lacks a plane of symmetry (POS).

Statement C is incorrect: For 5 stereoisomers, the total number of pairs is $\left(\genfrac{}{}{0ex}{}{5}{2}\right)=10$. Subtracting the 1 enantiomeric pair leaves 9 diastereomeric pairs.

Statement D is incorrect: The compound exhibits 4 geometrical isomers (where one exists as a pair of d- and l-enantiomers), not 5.