Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H 2 SO 4 followed by treatment with NaOH ?

Question

Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H 2 SO 4 followed by treatment with NaOH ? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Q. Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H2​SO4​ followed by treatment with NaOH ?

Q. Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. $H_{2} S O_{4}$ followed by treatment with $N a O H$ ?