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JEE Advanced · 2022 · 28 Aug 2022 · Paper 1 · Chapter_pending

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The weight percentage of hydrogen in , formed in the following reaction sequence, is ____.

[Given : Atomic mass of ]

Answer: 1.31

Solution

Chlorobenzene → (NaOH,623K,300atm) sodium phenoxide → (conc. H₂SO₄ then conc. HNO₃) picric acid, Q=C₆H₃N₃O₇. Mass % H = 3/229 = 1.31%. Source key 1.31 (note's 1.81 working was in error).

JEE Advanced · 2022 · 28 Aug 2022 · Paper 1 · Numerical answer

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