Final answer:
The electrophilic site in the molecule is the O of carbonyl.
Step-by-step explanation:
The electrophilic site in the given molecule is O of carbonyl. The carbonyl group consists of a carbon atom double bonded to an oxygen atom. Because oxygen is more electronegative than carbon, the carbon atom in the carbonyl group has a partial positive charge (8+), making it electrophilic. This makes it prone to react with nucleophiles or electron-rich species.