In the following reaction sequence, P, Q, S and T are the major products.
The correct statement(s) about P, Q, S and T is (are)
(A)Q on treatment with ethanol generates an aromatic aldehyde.
(B)S gives positive phthalein dye test✓ Correct
(C)P is a dinitro compound
(D)T is a coloured compound✓ Correct
Answer: (B), (D)
Solution
From the reaction sequence:
(A) Incorrect: Q does not generate an aromatic aldehyde on treatment with ethanol.
(B) Correct: S is a phenol derivative and gives positive phthalein dye test. Phenols react with phthalic anhydride in presence of conc. H₂SO₄ to give colored phthalein dyes.
(C) Incorrect: P is a mononitro product, not a dinitro compound.
(D) Correct: T is a colored dye compound formed in the reaction sequence.
Therefore, options (B) and (D) are correct.
JEE Advanced · 2026 · 17 May 2026 · Paper 2 · One or more correct options
