When `H_(2)S` is passed through an ammonium salt solution X, a white ppt is obtained .The X can be a

Options

A. Cobalt salt
B. Zinc salt
C. Nickel salt
D. Manganese salt

Answer

To solve the question, we need to identify the ammonium salt solution \( X \) that produces a white precipitate when hydrogen sulfide (\( H_2S \)) is passed through it.

### Step-by-Step Solution:

1. **Understanding the Reaction**:
When \( H_2S \) is passed through a solution containing ammonium salts, we need to identify which salt will react to form a white precipitate. The white precipitate indicates the formation of a sulfide.

2. **Identifying Possible Ammonium Salts**:
The options provided are:
- Cobalt salt
- Zinc salt
- Nickel salt
- Manganese salt

3. **Analyzing Each Salt**:
- **Cobalt Salt**: Cobalt sulfide is not typically white; it is usually a blue or black precipitate.
- **Zinc Salt**: Zinc sulfide (\( ZnS \)) is known to produce a white precipitate when \( H_2S \) is passed through a zinc salt solution.
- **Nickel Salt**: Nickel sulfide is typically green or black, not white.
- **Manganese Salt**: Manganese sulfide is also not white; it is usually a pink or brown precipitate.

4. **Conclusion**:
The only salt that produces a white precipitate when \( H_2S \) is passed through it is zinc salt. Therefore, the solution \( X \) must be a zinc salt.

### Final Answer:
The ammonium salt solution \( X \) can be a **Zinc salt**.