Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Ans. (B). In (B), 1-bromo-2-chloroethene (BrCH=CHCl), each double-bond carbon carries two different groups (H and Br on one, H and Cl on the other), so E/Z isomerism exists. (A) has two identical H atoms on the CH₂ carbon and (C) has two CH₃ groups on one double-bond carbon, so neither can show G.I.; (D) cyclopropane is unsubstituted.