A compound 'X' when treated with phthalic anhydride in presence of concentrated H2SO4 yields 'Y'. 'Y' is used as an acid / base indicator. 'X' and 'Y' are respectively (A) Anisole, methyl orange (B) T

Question

A compound 'X' when treated with phthalic anhydride in presence of concentrated H2SO4 yields 'Y'. 'Y' is used as an acid / base indicator. 'X' and 'Y' are respectively

(A) Anisole, methyl orange
(B) Toludine, Phenolphthalein
(C) Carbolic acid, Phenolphthalein
(D) Salicylaldehyde, Phenolphthalein

Prashant Kotian · Accepted Answer

Correct answer: C. Carbolic acid = phenol , NaOH O O O OH O– O OH O

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