Chemistry

Problem

The correct match of the group reagents in List-I for precipitating the metal ion given in List-II from solutions, is


(P) Passing $\text{H}_2\text{S}$ in the presence of $\text{NH}_4\text{OH}$	(1) $\text{Cu}^{2+}$
(Q) $(\text{NH}_4)_2\text{CO}_3$ in the presence of $\text{NH}_4\text{OH}$	(2) $\text{Al}^{3+}$
(R) $\text{NH}_4\text{OH}$ in the presence of $\text{NH}_4\text{Cl}$	(3) $\text{Mn}^{2+}$
(S) Passing $\text{H}_2\text{S}$ in the presence of dilute $\text{HCl}$	(4) $\text{Ba}^{2+}$
	(5) $\text{Mg}^{2+}$

(A)

\text{P} \rightarrow 3;\ \text{Q} \rightarrow 4;\ \text{R} \rightarrow 2;\ \text{S} \rightarrow 1

(B)

\text{P} \rightarrow 4;\ \text{Q} \rightarrow 2;\ \text{R} \rightarrow 3;\ \text{S} \rightarrow 1

(C)

\text{P} \rightarrow 3;\ \text{Q} \rightarrow 4;\ \text{R} \rightarrow 1;\ \text{S} \rightarrow 5

(D)

\text{P} \rightarrow 5;\ \text{Q} \rightarrow 3;\ \text{R} \rightarrow 2;\ \text{S} \rightarrow 4