Copper sulphate dissolves in ammonia due to the formulation of

Options

A. `Cu_(2)O`
B. `[Cu(NH_(3))_(4)]SO_(4)`
C. `[Cu(NH_(3))_(4)]OH`
D. `[Cu(H_(2)O)_(4)]SO_(4)`

Explanation

To solve the question "Copper sulphate dissolves in ammonia due to the formulation of," we need to analyze the interaction between copper sulfate (CuSO4) and ammonia (NH3).

### Step-by-step Solution:

1. **Understanding the Reactants**:
- Copper sulfate (CuSO4) is a salt that consists of copper ions (Cu²⁺) and sulfate ions (SO4²⁻).
- Ammonia (NH3) is a ligand that can coordinate with metal ions.

2. **Formation of Complex**:
- When copper sulfate dissolves in ammonia, the ammonia molecules coordinate with the copper ions. This is due to the ability of ammonia to act as a Lewis base, donating a pair of electrons to the copper ion, which is a Lewis acid.

3. **Determining the Complex Ion**:
- The reaction can be represented as:
\[ \text{CuSO}_4 + 4\text{NH}_3 \rightarrow \text{Cu(NH}_3\text{)}_4\text{SO}_4 \]
- Here, four ammonia molecules coordinate with one copper ion to form a complex ion, resulting in the compound Cu(NH3)4SO4.

4. **Identifying the Correct Option**:
- Among the given options:
- A: CuO
- B: CuNH3O4SO4
- C: CuNH3O4OH
- D: CuH2O4OH
- The correct formulation for the complex formed when copper sulfate dissolves in ammonia is Cu(NH3)4SO4, which corresponds to option B: CuNH3O4SO4.

5. **Conclusion**:
- Therefore, the answer to the question is option B: CuNH3O4SO4.