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Salt Analysis question

2023 · 25 Jan · Shift 1 · Q13
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  5. /2023 · 25 Jan · Shift 1 · Q13

Salt Analysis question

2023 · 25 Jan · Shift 1 · Q13

JEE MainChemistrySalt AnalysisMCQ+4 / −1

Match the List-I with List-II :

List-I
Cations		 List-II
Group reagents
A. Pb2+,Cu2+\mathrm{Pb^{2+},Cu^{2+}}Pb2+,Cu2+ i) H2S\mathrm{H_2S}H2​S gas in presence of dilute HCl
B. Al3+,Fe3+\mathrm{Al^{3+},Fe^{3+}}Al3+,Fe3+ ii) (NH4)2CO3\mathrm{(NH_4)_2CO_3}(NH4​)2​CO3​ in presence of NH4OH\mathrm{NH_4OH}NH4​OH
C. Co2+,Ni2+\mathrm{Co^{2+},Ni^{2+}}Co2+,Ni2+ iii) NH4OH\mathrm{NH_4OH}NH4​OH in presence of NH4Cl\mathrm{NH_4Cl}NH4​Cl
D. Ba2+,Ca2+\mathrm{Ba^{2+},Ca^{2+}}Ba2+,Ca2+ iv) H2S in presence of NH4OH

Correct match is -

  1. A
    A →\to→ i, B →\to→ iii, C →\to→ iv, D →\to→ ii
  2. B
    A →\to→ i, B →\to→ iii, C →\to→ ii, D →\to→ iv
  3. C
    A →\to→ iii, B →\to→ i, C →\to→ iv, D →\to→ ii
  4. D
    A →\to→ iv, B →\to→ ii, C →\to→ iii, D →\to→ i
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