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JEE Main 2026 Chemistry question

ChemistryAlcohols, Phenols and EthersJEE Main 2026

Identify the colour of compound 'X' in the sequence of the reaction. (Phenolphthalein synthesis: phenol + phthalic anhydride, conc. H₂SO₄, gives the colourless lactone form; NaOH converts it to the pink quinoid dianion; excess NaOH converts this further to the ring-opened carbinol trianion, X.)

Answer: (D)

Solution

In excess (concentrated) NaOH, phenolphthalein's pink quinoid form is converted to the

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Question ID VK-015329