The correct name of `[Pt(NH_3)_4Cl_2][PtCl_4]` is

Options

A. tetrachloridoplantinum (II) dichloro dotertrammine platinate
B. dichlordotrammine platinum (IV) tetrachloroplatinate (II)
C. diamminedichloroplatinum (IV) tetrachlor ldo platinum (II)
D. tetrachlor ldo platinum (II) tetraammineplatinum (IV)

Answer

To name the compound \([Pt(NH_3)_4Cl_2][PtCl_4]\), we will follow the systematic naming conventions for coordination compounds. Here is a step-by-step breakdown of the naming process:

### Step 1: Identify the Cationic and Anionic Parts
The compound consists of two parts:
- The cationic part: \([Pt(NH_3)_4Cl_2]^+\)
- The anionic part: \([PtCl_4]^{2-}\)

### Step 2: Name the Cationic Part
1. **Identify the ligands**:
- The ligands present are ammonia (\(NH_3\)) and chloride (\(Cl^-\)).
- Ammonia is a neutral ligand and is named as "amine".
- Chloride is a negatively charged ligand and is named as "chlorido".

2. **Count the ligands**:
- There are 4 ammonia ligands, which is indicated by the prefix "tetra-".
- There are 2 chloride ligands, which is indicated by the prefix "di-".

3. **Arrange ligands in alphabetical order**:
- Alphabetically, "amine" comes before "chlorido".

4. **Combine the names**:
- The name of the cationic part is "tetraammine dichloridoplatinum".

5. **Determine the oxidation state of platinum**:
- The total charge contributed by the ligands is \(0 + (-2) = -2\) (from 2 chlorido ligands).
- Therefore, the oxidation state of platinum must be \(+2\) to balance the overall charge to \(+1\) for the cation.

### Step 3: Name the Anionic Part
1. **Identify the ligands**:
- The anionic part contains 4 chloride ligands.

2. **Count the ligands**:
- There are 4 chloride ligands, which is indicated by the prefix "tetra-".

3. **Combine the names**:
- The name of the anionic part is "tetrachloridoplatinate".

4. **Determine the oxidation state of platinum**:
- The total charge from the 4 chloride ligands is \(-4\), so the oxidation state of platinum here is \(+4\).

### Step 4: Combine the Names
Now, we can combine the names of the cationic and anionic parts:
- The full name of the compound is "tetraammine dichloridoplatinum(II) tetrachloridoplatinate(II)".

### Final Answer
The correct name of the compound \([Pt(NH_3)_4Cl_2][PtCl_4]\) is:
**Tetraammine dichloridoplatinum(II) tetrachloridoplatinate(II)**.

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