Question

Butanone has a functional group __________

Answer 1

• A ketone is a functional group having a carbon atom directly attached to an oxygen atom with a double bond ( $\mathrm{C}=\mathrm{O}$ ) and 2 hydrocarbon groups attached to the carbonyl carbon.
• All the ketone functional group members represented by the suffix ‘-one'.
• The structure of butanone is:

Hence, butanone has a functional group ketone( $\mathrm{C}=\mathrm{O}$ ).