Compound A of molecular formula C9H7O2Cl exists in keto form and predominantly in enolic form B
Compound A (C₉H₇O₂Cl) exists in both keto and enol forms, with the enol form (B) being more stable. This indicates that A is a carbonyl compound with at least one α-hydrogen, allowing enolization. The predominance of the enol form is due to intramolecular hydrogen bonding, which stabilizes it.
