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Salt Analysis question

2025 · Shift 1 · Q14
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Salt Analysis question

2025 · Shift 1 · Q14

JEE AdvancedChemistrySalt AnalysisMCQ+4 / −1

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

List–I List–II
(P) Passing H2S\mathrm{H_2S}H2​S in the presence of NH4OH\mathrm{NH_4OH}NH4​OH (1) Cu2+\mathrm{Cu^{2+}}Cu2+
(Q) (NH4)2CO3\mathrm{(NH_4)_2CO_3}(NH4​)2​CO3​ in the presence of NH4OH\mathrm{NH_4OH}NH4​OH (2) Al3+\mathrm{Al^{3+}}Al3+
(R) NH4OH\mathrm{NH_4OH}NH4​OH in the presence of NH4Cl\mathrm{NH_4Cl}NH4​Cl (3) Mn2+\mathrm{Mn^{2+}}Mn2+
(S) Passing H2S\mathrm{H_2S}H2​S in the presence of dilute HCl\mathrm{HCl}HCl (4) Ba2+\mathrm{Ba^{2+}}Ba2+
(5) Mg2+\mathrm{Mg^{2+}}Mg2+
  1. A
    P → 3; Q → 4; R → 2; S → 1
  2. B
    P → 4; Q → 2; R → 3; S → 1
  3. C
    P → 3; Q → 4; R → 1; S → 5
  4. D
    P → 5; Q → 3; R → 2; S → 4
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