Question

How many asymmetric carbon atoms are present in :
(i) $1,2$-dimethylcyclohexane,
(ii) $3$-methylcyclopentene and
(iii) $3$-methylcyclohexene ?

• A. two, one, one
• B. one, one one
• C. two, none, two
• D. two, none, one

Answer 1

Answer: (A)

No of asymmetric carbon atoms in
$1,2$ - dimethylcyclohexane $=2$
$3$ -methylcyclopentene $=1$
$3$ -methylcyclohexene $=1$