Question

Enter the number of functional isomer possible for propanone ($C{H}_{3}COC{H}_3$).

• A. 1

Answer 1

The correct option is A 1

Functional isomerism are the compounds having the same molecular formula but having a difference in their functional groups. Ketone is the only functional isomer of aldehyde.
For example:

Both of these have molecular formula $C_3{H}_{6}O$ but one has -CHO functional group and another one has -C=O functional group. So, only 1 functional isomer is possible for propanone.