Answer to Question #128764 in Organic Chemistry for Moreen

Question

9. Which compound would show optical activity?

A) cis 1, 4- dimethylcyclohexane
B) trans 1, 4- dimethylcyclohexane
C) cis 1,4- dimethylcycloheptane
D) trans 1, 4- dimethylcycloheptane

Answer 1

Answer Should Be "C" .

cis 1,4- dimethylcycloheptane .

Optical activity is the ability of a chiral molecule to rotate the plane of plane-polairsed light, measured using a polarimeter. A simple polarimeter consists of a light source, polarising lens, sample tube and analysing lens.