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

Aicharya · Accepted Answer

The final product formed is a derivative of phenolphthalein which has Pink color in basic medium.

Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H 2 SO 4…