Question

Positional isomerism is a type of structural isomerism, which occurs when the same functional group is in different positions on the same carbon chain.

• A. True
• B. False

Answer 1

The correct option is A True

Positional isomerism occurs due to the difference in position of functional groups.
For example, two positional isomers are possible with the molecular formula $C_4{H}_{9}Cl$. In one of them, -Cl atom is placed at the end whereas in the other it is placed at the second carbon atom. Their IUPAC names are 1-chlorobutane and 2-chlorobutane respectively.