Chemistry · 2021
JEE Main · 24 February 2021, Shift 1 · Q40
Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. H_2 SO_4 followed by treatment with NaOH?
Which of the following compound gives pink colour on reaction with phthalic anhydride in conc. $\displaystyle \mathrm{H}_2 \mathrm{SO}_4$ followed by treatment with NaOH ?
Official answer
(2)
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