Question

Match List I with List II:

Choose the correct answer from the options given below:

• A. A-III, B-IV, C-II, D-I
• B. A-III, B-II, C-IV, D-I
• C. A-III, B-IV, C-I, D-II
• D. A-III, B-IV, C-II, D-I

Hint:

In qualitative analysis, cations are grouped based on their reactions with various reagents. Groups are determined by the solubility of the formed precipitates and their subsequent reactions.

Answer 1

The Correct Option is B

Cation analysis categorizes ions by their reactions with specific reagents: - A. \(Co^{2+}\) (Cobalt): Classified as Group-III in cation analysis. Therefore, A-III. - B. \(Mg^{2+}\) (Magnesium): Placed in Group-II because it does not precipitate with most reagents for Group-I and Group-III cations. Therefore, B-II. - C. \(Pb^{2+}\) (Lead): Typically found in Group-IV of cation analysis, forming precipitates with group-specific reagents. Therefore, C-IV. - D. \(Al^{3+}\) (Aluminum): Assigned to Group-I, analyzed in this group due to its distinct reactivity. Therefore, D-I. The correct correspondence is (2) A-III, B-II, C-IV, D-I.