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ChemistryNEET 2025Titrimetric analysis and salt analysis

Principles Related to Practical Chemistry

Match List I with List II.

List I (Ion) List II (Group number in cation analysis)
A. Co2+\mathrm{Co^{2+}} I. Group I
B. Mg2+\mathrm{Mg^{2+}} II. Group III
C. Pb2+\mathrm{Pb^{2+}} III. Group IV
D. Al3+\mathrm{Al^{3+}} IV. Group VI

Choose the correct answer from the options given below:

  1. A.A-III, B-IV, C-II, D-I
  2. B.A-III, B-IV, C-I, D-II✓
  3. C.A-III, B-II, C-IV, D-I
  4. D.A-III, B-II, C-I, D-IV

Solution

Pb2+\mathrm{Pb^{2+}} precipitates as the chloride in Group I; Al3+\mathrm{Al^{3+}} as the hydroxide in Group III; Co2+\mathrm{Co^{2+}} as the sulphide in Group IV; Mg2+\mathrm{Mg^{2+}} is in Group VI. So A-III, B-IV, C-I, D-II.

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