Question

Total number of alkenes possible by dehydrohalogenation of $\text{3-bromo-3-cyclopentylhexane}$ using alcoholic $KOH$ is:

• A. 5.00
• B. 5.0
• C. 5

Answer 1

Answer: (A), (B), (C)

The substrate has $3$ types of basic hydrogens, therefore three structural isomers are possible as follow:

Structure (I) and (III) can show cis-trans isomeriam. Therefore total of $5$ isomers are possible.