Question

But-1-ene and But-2-ene exhibits _____________ isomerism.

• A. position
• B. metamerism
• C. chain
• D. functional group

Answer 1

The correct option is A position

Isomers with a difference in the position of multiple bond/functional group/alkyl substituent on the same carbon skeleton (parent chain) is known as position isomers. Butene exhibits positon isomerism as but-1-ene and but-2-ene differ in the position of double bond.