Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Ans. (B) 10.

Sol. 1,2-Di(prop-1-enyl)cyclopentane has two ring stereocentres and two stereogenic C=C bonds, but the two substituted ring carbons are constitutionally equivalent. Counting orbits under the exchange of the two halves: (E,E) gives 3 (an enantiomeric pair + a meso form), (Z,Z) gives 3, and (E,Z) gives 4. Total = 10.