Which of the following sets of reagents, used in the order shown, would be enable for the preparation of $p-$ chlorophenol from $p-$ chloronitrobenzene ?
  • A$1. Fe, HCl ;\,\, 2. NaOH ;\,\, 3. NaNO_2, H_2SO_4 ;\,\, 4, H_3 PO_2$
  • B$1. Fe, HCl ; \,\,2. NaOH ; \,\,3. NaNO_2, H_2SO_4 ; \,\,4. H_2O,$ heat
  • C$1. Fe, HCl ; \,\,2. NaOH ; \,\,3. NaNO_2 , H_2SO_4 ; \,\,4.$ ethanol
  • D$1. NaOH,$ heat $; 2. HCl$
Medium
art

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