Question

2 91 13. Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H2SO4 followed by treatment with NaOH ? (JEE (Mains) 2021) (a) HC CH: HO OH CH; (6) ( 21] OH (c) НО. CH HO CH (d) CH HO .​

Answer 1

Answer:

So, option 1compound gives pink colour on reaction with phthalic anhydride in conc. H2SO4 followed by treatment with NaOH.