Phenol undergoes a special type of Fiedel Craft's acylation with phthalic anhydride to form a compound (P) with is used as an indicator in acid-base titration reactions. Which of the following
Phenol undergoes a special type of Fiedel Craft's acylation with phthalic anhydride to form a compound (P) with is used as an indicator in acid-base titration reactions. Which of the following correctly represents the structure of (P)?