An aqueous solution containing `S^(-2)` ions will not give

Options

A. A yellow precipitate with the suspension of `CdCO_(3)` in water
B. Black precipitate with lead acetate solution
C. White precipitate with `CaCO_(3)` suspension
D. Purple colour with sodium thiosulphate solution

Answer

To solve the question regarding the behavior of an aqueous solution containing \( S^{2-} \) ions, we need to analyze the possible reactions that can occur when \( S^{2-} \) ions are mixed with certain reagents.

### Step-by-Step Solution:

1. **Identify the nature of \( S^{2-} \) ions**:
- The sulfide ion \( S^{2-} \) is a strong base and can react with various metal ions in solution.

2. **Consider the reaction with Barium Chloride (\( BaCl_2 \))**:
- When \( S^{2-} \) ions react with barium ions \( Ba^{2+} \) from barium chloride, they form barium sulfide \( BaS \), which is a white precipitate.
- Reaction:
\[ Ba^{2+} + S^{2-} \rightarrow BaS \, (s) \, \text{(white precipitate)} \]

3. **Consider the reaction with Sodium Thiosulfate (\( Na_2S_2O_3 \))**:
- Sodium thiosulfate contains thiosulfate ions \( S_2O_3^{2-} \). When \( S^{2-} \) ions react with thiosulfate ions, they do not form a colored solution or precipitate.
- The reaction does not produce a distinct color change, hence it does not yield a purple color.

4. **Conclusion**:
- An aqueous solution containing \( S^{2-} \) ions will not give a white precipitate with barium chloride and will not produce a purple color with sodium thiosulfate.

### Final Answer:
An aqueous solution containing \( S^{2-} \) ions will not give a white precipitate with barium chloride and will not give a purple color with sodium thiosulfate.