A compound ‘X’ when treated with phthalic anhydride in presence of concentrated $\mathrm{H}_2 \mathrm{SO}_4$ yields ‘Y’. ‘Y’ is used as an acid/base indicator. ‘X’ and ‘Y’ are respectively:
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation. Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇
