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The sequence of reagents required to convert aniline to benzene nitrile are

ChemistryAminesAP EAMCETAP EAMCET 2023 (17 May Shift 2)

Options:

A $\mathrm{NaNO}_2+\mathrm{HCl}, 293-298 \mathrm{~K}$;
$\mathrm{CuCN} / \mathrm{KCN}$
B $\mathrm{NaNO}_2+\mathrm{HCl}, 273-278 \mathrm{~K}$;
$\mathrm{CuCN} / \mathrm{KCN}$
C $\mathrm{NaNO}_2+\mathrm{HCl}, 273-298 \mathrm{~K}$;
$\mathrm{Cu} / \mathrm{HCN}$
D $\mathrm{Cl}_2 / \mathrm{Fe}$;
$\mathrm{KCN}$