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  3. Chemistry
  4. Phenol is heated with phthalic anhydride in presence of cone H2SO4 . The product gives pink colour with alkali. The product is

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Q. Phenol is heated with phthalic anhydride in presence of cone $ {{H}_{2}}S{{O}_{4}} $ . The product gives pink colour with alkali. The product is

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Solution:

Correct answer is (a) phenolphthalein

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