નીચેના પરિવર્તન માટે સાચા પ્રક્રિયકનો સાચો ક્રમ શું છે?

Question

A$(i)$ $\mathrm{Cl}_{2}, \mathrm{FeCl}_{3}\,\,(\mathrm{ii}) \mathrm{NaNO}_{2}, \mathrm{HCl}, 0^{\circ} \mathrm{C}\,\,(\mathrm{iii}) \mathrm{Fe}, \mathrm{HCl}\,\,(\mathrm{iv}) \mathrm{H}_{2} \mathrm{O} / \mathrm{H}^{+}$
B$(i)$ $\mathrm{Cl}_{2}, \mathrm{FeCl}_{3}\,\,(\mathrm{ii}) \mathrm{NaNO}_{2}, \mathrm{HCl}, 0^{\circ} \mathrm{C}\,\,(\mathrm{iii}) \mathrm{Fe}, \mathrm{HCl}\,\,(\mathrm{iv}) \mathrm{H}_{2} \mathrm{O} / \mathrm{H}^{+}$
C$(i)$ $\mathrm{Fe}, \mathrm{HCl}\,\,(\mathrm{ii}) \mathrm{Cl}_{2}, \mathrm{HCl}\,\,(\mathrm{iii}) \mathrm{NaNO}_{2}, \mathrm{HCl}, 0^{\circ} \mathrm{C}\,\,(\mathrm{iv}) \mathrm{H}_{2} \mathrm{O} / \mathrm{H}^{+}$
D$(i)$ $\mathrm{Cl}_{2}, \mathrm{FeCl}_{3}\,\,(\mathrm{ii}) \mathrm{Fe}, \mathrm{HCl}\,\,(\mathrm{iii}) \mathrm{NaNO}_{2}, \mathrm{HCl}, 0^{\circ} \mathrm{C}\,\,(\mathrm{iv}) \mathrm{H}_{2} \mathrm{O} / \mathrm{H}^{+}$

JEE MAIN 2021, Diffcult

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Solution

d

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