JEE · NEET Previous Year Question

Match the List-I with List-II:
$\begin{array}{ll}\text{Cations}& \text{Group reaction}\\ \text{p }\to P{b}^{2+}\text{, }C{u}^{2+}& \text{(i) }{H}_2\text{S gas in presence of dilute HC1}\\ \text{Q }\to A{1}^{3+}\text{, }F{e}^{3+}& \text{(ii) (}N{H}_4{\text{)}}_{2}C{O}_3\text{ in presence of }N{H}_4\text{OH}\\ \text{R }\to C{o}^{2+}\text{, }N{i}^{2+}& \text{(iii) }N{H}_4\text{OH in presence of }N{H}_4\text{CI}\\ \text{S }\to B{a}^{2+}\text{, }C{a}^{2+}& \text{(iv) }{H}_2\text{S in presence of }N{H}_4\text{OH}\end{array}$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.