The most suitable reagent for the conversion of `R-CH_(2)OH to R-CHO` is

Options

A. PCC (Pyridinium chlorochromate)
B. `KMnO_(4)`
C. `K_(2)Cr_(2)O_(7)`
D. `CrO_(3)`

Explanation

To convert a primary alcohol (R-CH₂OH) to an aldehyde (R-CHO), we need to carry out an oxidation reaction. Here’s a step-by-step solution:

1. **Identify the Type of Alcohol**:
- The given compound is a primary alcohol (R-CH₂OH). Primary alcohols can be oxidized to aldehydes.

2. **Understand the Oxidation Process**:
- The oxidation of a primary alcohol involves the removal of two hydrogen atoms: one from the hydroxyl group (-OH) and one from the carbon atom bonded to it. This results in the formation of an aldehyde (R-CHO).

3. **Select the Appropriate Reagent**:
- For the oxidation of primary alcohols to aldehydes, a mild oxidizing agent is required. Strong oxidizing agents can further oxidize aldehydes to carboxylic acids, which is not desired in this case.
- The most suitable reagent for this conversion is Pyridinium Chlorochromate (PCC). PCC is a mild oxidizing agent that selectively oxidizes primary alcohols to aldehydes without over-oxidizing them to carboxylic acids.

4. **Conclusion**:
- Therefore, the most suitable reagent for the conversion of R-CH₂OH to R-CHO is PCC (Pyridinium Chlorochromate).

### Final Answer:
The most suitable reagent for the conversion of R-CH₂OH to R-CHO is PCC (Pyridinium Chlorochromate).