See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

  Re d hot iron tube 873 K cyclic polymerisation 3CH CH    A  B 2 NaNO HCl low temperature  3 2 4 Conc. HNO Conc. H SO  NO2  Sn HCl 6 H    C NH2  D 3 Catalyst 3Br NH2 Br Br Br  E 3 2 2 H PO H O N2 Br Br Br Br Br Br  F  G