Write IUPAC name of iodoform.

Answer

To determine the IUPAC name of iodoform, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Molecular Formula**:
The molecular formula of iodoform is CHI₃. This indicates that the compound consists of one carbon atom, one hydrogen atom, and three iodine atoms.

2. **Determine the Structure**:
Iodoform can be visualized as a carbon atom bonded to three iodine atoms and one hydrogen atom. The structure can be represented as:
```
I
|
I - C - H
|
I
```

3. **Identify the Parent Hydrocarbon**:
The parent hydrocarbon in this case is methane (CH₄), as it contains one carbon atom.

4. **Naming the Compound**:
Since iodoform has three iodine atoms replacing three hydrogen atoms in methane, we need to indicate the presence of these iodine substituents in the name. The IUPAC naming convention for haloalkanes involves using the prefix "iodo" for iodine.

5. **Construct the IUPAC Name**:
The IUPAC name for iodoform is derived from "methane" (the parent hydrocarbon) and the fact that three hydrogens are replaced by iodine atoms. Therefore, the name becomes "triiodomethane".

### Final Answer:
The IUPAC name of iodoform is **triiodomethane**.

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