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Match List - I with List - II : LIST - I (Precipitating reagent and conditions) LIST - II (Cation ) A. NH 4 Cl + NH 4 OH I. Mn 2+ B. NH 4 OH + Na 2 CO 3 II. Pb 2+ C. NH 4 OH + NH 4 Cl + H 2 S gas III. Al 3+ D. dilute HCl IV. Sr 2+ Choose the correct answer from the options given below :

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

Correct answer: A - III, B - IV, C - I, D - II

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