Chemistry - STEREO ISOMERISM Question with Solution | TestHub

Ans. (A) A, C and E.

Sol. A (3-methylcyclohex-1-ene): C₃ carries H, CH₃ and two different ring paths (towards the double bond and away from it) : asymmetric center present.

B (methylcyclohexane): the substituted carbon carries two identical ring paths : no asymmetric center.

C (4-methylcyclohex-1-ene): C₄ carries H, CH₃ and two different ring paths : asymmetric center present.

D (1-methylcyclohex-1-ene): the methyl-bearing carbon is sp² and no ring carbon has four different groups : no asymmetric center.

E (1,2-dimethylcyclohexane): C₁ and C₂ each carry H, CH₃ and two different ring paths : two asymmetric centers.