Match the List-I with List-II

	List-I (Cations)		List-II(Group reagents)
A)	${\mathrm{Pb}}^{2+},{\mathrm{Cu}}^{2+}$	i)	${\mathrm{H}}_2\mathrm{S}$ gas in presence of dilute HCl
B)	$\mathrm{A}{\mathcal{l}}^{3+},{\mathrm{Fe}}^{3+}$	ii)	${\left({\mathrm{NH}}_4\right)}_2{\mathrm{CO}}_3$ in presence of ${\mathrm{NH}}_4\mathrm{OH}$
C)	${\mathrm{Co}}^{2+},{\mathrm{Ni}}^{2+}$	iii)	${\mathrm{NH}}_4\mathrm{OH}$  in presence of  ${\mathrm{NH}}_4\mathrm{C}\mathcal{l}$
D)	${\mathrm{Ba}}^{2+},{\mathrm{Ca}}^{2+}$	iv)	${\mathrm{H}}_2\mathrm{S}$  in presence of  ${\mathrm{NH}}_4\mathrm{OH}$

Correct match is______