A compound 'X' on heating with phthalic ...

A compound 'X' on heating with phthalic anhydride and a few drops of conc: `H_(2)SO_(4)`, produced a colourless substance, which gave a pink colour on adding NaOH solution. The compound 'X' is

Phenol

p-nitrophenol

p-cresol

Benzyl alcohol

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