IUPAC name of `[Pt(NH_(3))_(2)Cl(NO_(2))]` is

Options

A. platinum diaminechloronitrite
B. Chloronitrito-N-ammeniplatinum (II)
C. diammenichloridonitrito-N-plantinum(II)
D. diamminechloronitrito-N-plantinate(II)

Explanation

To determine the IUPAC name of the coordination complex `[Pt(NH₃)₂Cl(NO₂)]`, we can follow these steps:

### Step 1: Identify the Ligands
The ligands present in the complex are:
- Ammonia (NH₃), which is a neutral ligand.
- Chloride (Cl), which is a negatively charged ligand.
- Nitrite (NO₂), which is also a negatively charged ligand.

### Step 2: Name the Ligands in Alphabetical Order
When naming the ligands, we list them in alphabetical order based on their names:
- Amine (from NH₃) is called "ammine."
- Chloride (from Cl) is called "chlorido."
- Nitrite (from NO₂) is called "nitrito."

Since there are two ammonia ligands, we use the prefix "di-" to indicate this.

Thus, the ligands in alphabetical order are:
1. Ammine (diammine for two NH₃)
2. Chlorido
3. Nitrito

### Step 3: Identify the Coordination Number and Linkage
The nitrite ligand (NO₂) can bind through nitrogen or oxygen, but in this case, it is specified to bind through nitrogen, so we will denote it as "nitrito-N."

### Step 4: Name the Metal and Its Oxidation State
The metal in the complex is platinum (Pt). To determine the oxidation state of platinum, we consider the charges of the ligands:
- Ammonia (NH₃) is neutral (0 charge).
- Chloride (Cl) has a charge of -1.
- Nitrite (NO₂) has a charge of -1.

The total charge contributed by the ligands is -2. To balance this, platinum must have an oxidation state of +2.

### Step 5: Combine All Parts to Form the IUPAC Name
Now we can combine all the parts:
- Ligands: diammine, chlorido, nitrito-N
- Metal: platinum
- Oxidation state: (II)

Putting it all together, the IUPAC name of the complex is:
**Diamminedichloridonitrito-N-platinum(II)**

### Final Answer
**Diamminedichloridonitrito-N-platinum(II)**

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