Question

If the position of the functional group varies in each of its isomers then it is:

• A. position isomerism
• B. functional group isomerism
• C. chain isomerism
• D. all of them

Answer 1

The correct option is A position isomerism

Positional isomerism arises due to the difference in the position of the same functional group on the carbon chain.

Example: chloroprobutane have two positional isomers

$C{H}_{3}C{H}_{2}C{H}_{2}C{H}_{2}Cl$ 1-Chlorobutane and

$CH_3CH_2 CH (Cl) CH_3$ 2-chlorobutane.

Hence option A is correct.