Chemistry - STEREO ISOMERISM Question with Solution | TestHub

(A) 1,3-Dibromoallene is axially chiral - it exists only as a pair of enantiomers, so it has no diastereomer.

(B) 1-Bromo-2-chloroethene exists as cis and trans forms, which are diastereomers: $<$$\to$ ; diastereomers.

(C) C(F)(Cl)(Br)(I) has only one stereocentre - it exists only as a pair of enantiomers, so it has no diastereomer.

(D) The given form is meso-2,3-dimethylsuccinic acid, (2S,3R); the (2R,3R) and (2S,3S) forms are its diastereomers: $<$$\to$ ; diastereomers.

Ans. (B, D)