The compound triamminediaquachlorido cobalt (111) chloride is correctly represented according to the latest IUPAC rules as

Options

A. `[Co(CI)(NH_(3))_(3)(H_(2)O)_(2)]CI_(2)`
B. `[Co(NH_(3))_(3)(H_(2)O)_(2) Ci]CI_(2)`
C. `[Co(H_(2)O)_(2)(NH_(3))_(3)]CI_(3)`
D. `[Co(H_(2)O)_(2)CI(NH_(3))_(3)]CI_(3)`

Answer

To represent the compound triamminediaquachloridocobalt(III) chloride according to the latest IUPAC rules, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Ligands and Their Counts**:
- The compound contains:
- Triamine: 3 NH₃ (ammonia)
- Diaqua: 2 H₂O (water)
- Chlorido: 1 Cl⁻ (chloride ion)

2. **Identify the Central Metal and Its Oxidation State**:
- The central metal is cobalt (Co).
- The oxidation state of cobalt in this compound is +3 (indicated by the (III) in the name).

3. **Write the Formula Based on Ligands**:
- The formula will include the ligands and the central metal:
- Cobalt will be written first, followed by the ligands.
- The ligands will be enclosed in brackets.
- The formula can be represented as:
- Co(NH₃)₃(H₂O)₂(Cl)

4. **Order the Ligands Alphabetically**:
- According to IUPAC rules, ligands are ordered alphabetically regardless of their quantity.
- The order will be:
- Amine (NH₃) comes first,
- Aqua (H₂O) comes next,
- Chlorido (Cl) comes last.
- Therefore, the correct order will be:
- (NH₃)₃, (H₂O)₂, (Cl)

5. **Combine the Elements into the Final Formula**:
- The final formula will be written as:
- [Co(NH₃)₃(H₂O)₂(Cl)]Cl
- Here, the outer chloride ion is represented outside the brackets.

6. **Final Representation**:
- According to the latest IUPAC rules, the compound is represented as:
- [Co(NH₃)₃(H₂O)₂(Cl)]Cl

### Final Answer:
The compound triamminediaquachloridocobalt(III) chloride is correctly represented as: **[Co(NH₃)₃(H₂O)₂(Cl)]Cl**

---