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Identify A and B in the following reaction sequence. Br ⎯ ⎯ ⎯ ⎯ → ⎯ 3 HNO . Conc A HCl ) ii ( NaOH ) i ( ⎯ ⎯ ⎯ → ⎯ B Conc. H 2 SO 4

1. Br A= NO 2 NO 2 NO 2 OH B= NO 2 NO 2 NO 2
2. Br A= NO 2 OH B= NO 2
3. NO 2 A= Br B= OH
4. Br A= NO 2 NO 2 Br B= OH OH

Correct answer: Br A= NO 2 OH B= NO 2

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