Question

What is the correct relationship between the two molecules shown below?

• A. There is no relationship.
• B. They are positional isomers.
• C. They are chain isomers.
• D. They are functional group isomers.

Answer 1

The correct option is B They are positional isomers.

Isomers with a difference in the position of multiple bond/functional group/alkyl substituent on the same carbon skeleton (parent chain).
The principal carbon chain remains the same in position isomers.

In given organic compound principal carbon chain is same but position of substituent( chlorine ) is changing Thus it shows positional isomer. Hence, Option B is the correct answer.