Question

Match the following.

Column 1	Column 2	Column 3
Basic radical	Group	Group Reagent
a. $A{l}^{3+}$	p. Group I	1. $H_{2}S$ gas in presence of $dil.HCl$
b. $C{u}^{2+}$	q. Group II	2. $N{H}_{4}OH$ in presence of $N{H}_{4}Cl$
c. $A{g}^{+}$	r. Group III	3. $Dil.HCl$
d. $N{i}^{2+}$	s. Group IV	4. $H_{2}S$ in ammoniacal medium

• A. $a\to r\to 2,b\to q\to 1,c\to p\to 3,d\to s\to 4$
• B. $a\to r\to 3,b\to q\to 1,c\to p\to 2,d\to s\to 4$
• C. $a\to r\to 1,b\to q\to 3,c\to p\to 2,d\to s\to 4$
• D. $a\to r\to 4,b\to q\to 1,c\to p\to 3,d\to s\to 2$

Answer 1

The correct option is A $a\to r\to 2,b\to q\to 1,c\to p\to 3,d\to s\to 4$

Answer : a

Group	Basic radicals	Group reagent	ppt. as
I	$A{g}^{+},H{g}_2^{2+}\left(I\right),P{b}^{2+}$	dil HCl	Chloride $(AgCl,H{g}_{2}C{l}_2,PbC{l}_2)$
II	$C{u}^{2+},C{d}^{2+},P{b}^{2+},$ $H{g}^{2+}\left(II\right),B{i}^{3+},A{s}^{3+},$ $S{b}^{3+},S{n}^{2+}$	$H_{2}S$ gas in presence of dil. HCl	Sulphides $(CuS.A{s}_2{S}_{3}etc.)$
III	$A{l}^{3+},C{r}^{3+},F{e}^{3+}$	$N{H}_{4}OH$ in presence of $N{H}_{4}Cl$	Hydroxide, $Al(OH{)}_3$ etc.
IV	$Z{n}^{2+},N{i}^{2+},M{n}^{2+},C{o}^{2+}$	$H_{2}S$ in ammonical medium	Sulphides (ZnS etc.)