Which of the following will reacts with NaOI ?

Options

A. `CH_(3) - overset(O)overset(||)(C ) -H`
B.
C.
D. All

Answer

To determine which compound reacts with NaOI (sodium iodide), we need to understand the conditions under which NaOI can react. NaOI is commonly involved in the iodoform reaction, which typically requires a methyl ketone or an aldehyde with at least one methyl group adjacent to the carbonyl group.

### Step-by-Step Solution:

1. **Identify the Functional Groups**:
- Look for compounds that contain a methyl ketone (RCOCH3) or an aldehyde (RCHO) with a methyl group adjacent to the carbonyl carbon.

2. **List Possible Compounds**:
- Write down the structures of the compounds provided in the question. Identify if any of them have the required functional groups.

3. **Check for Methyl Ketones or Aldehydes**:
- For each compound, check if it has a carbonyl group (C=O) with a methyl group attached (for ketones) or an aldehyde with a methyl group adjacent to it.

4. **Analyze the Reaction Mechanism**:
- If a compound has the required structure, it will undergo the iodoform reaction. The iodine from NaOI will react with the hydrogen atoms adjacent to the carbonyl group, leading to the formation of iodoform (CHI3) and a carboxylate ion.

5. **Conclusion**:
- Identify the compound(s) that meet the criteria for the iodoform reaction. These are the compounds that will react with NaOI.

### Final Answer:
The compounds that will react with NaOI are those containing a methyl ketone or an aldehyde with a methyl group adjacent to the carbonyl group.