Question:
Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$ ?
Correct Option: , 2
Solution:
Only p-methyl, phenol does not give any colour with phthalic anhydroxide with cons. $\mathrm{H}_{2} \mathrm{SO}_{4}$.