Question

Match List - I with List - II :

List - I (Metal Ion)	List - II (Group in Qualitative analysis)
(a) \( \text{Mn}^{2+} \)	(i) Group - III
(b) \( \text{As}^{3+} \)	(ii) Group - IIA
(c) \( \text{Cu}^{2+} \)	(iii) Group - IV
(d) \( \text{Al}^{3+} \)	(iv) Group - IIB

Choose the most appropriate answer from the options given below :

• A. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
• B. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
• C. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
• D. (a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)

Hint:

Mnemonic for Groups:
Group II (Acidic Sulfide): "Pass (Pb) His (Hg) Cup (Cu) Back (Bi) Soon (Sn) As (As) Sab (Sb) Cadet (Cd)".
Group IV (Basic Sulfide): "Zinda (Zn) Munni (Mn) Nek (Ni) Co (Co)".

Answer 1

The Correct Option is C

To solve this question, we need to match the metal ions from List-I with their respective groups in qualitative analysis from List-II. Here are the steps:

1. Understanding Qualitative Analysis Groups: Qualitative analysis involves categorizing metal ions into different groups based on their chemical properties and the reagents they react with. The common groups in qualitative analysis are:
   • Group - III: This group generally contains metal ions like iron (Fe³⁺), aluminum (Al³⁺), and chromium (Cr³⁺).
   • Group - IIA: This group contains ions such as cadmium (Cd²⁺), copper (Cu²⁺), and bismuth (Bi³⁺).
   • Group - IV: It includes metal ions like manganese (Mn²⁺).
   • Group - IIB: This group includes ions like arsenic (As³⁺), antimony (Sb³⁺), and tin (Sn²⁺, Sn⁴⁺).
2. Matching the Ions: Based on the characteristics and reactions mentioned above, we can make the following matches between List-I and List-II:
   • \text{Mn}^{2+}: Belongs to Group - IV.
   • \text{As}^{3+}: Belongs to Group - IIB.
   • \text{Cu}^{2+}: Belongs to Group - IIA.
   • \text{Al}^{3+}: Belongs to Group - III.
3. Conclusion: The correct match is:
   1. Mn²⁺ - Group IV (iii)
   2. As³⁺ - Group IIB (iv)
   3. Cu²⁺ - Group IIA (ii)
   4. Al³⁺ - Group III (i)

Hence, the most appropriate answer is: (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i).