Kolbe's electrolytic method can be applied on

Options

A. `CH_(3)COONa`
B. `(KOOC-CH_(2)-CH_2-COOK)`
C. `underset(KOOC-CH=HC-COOK)`
D. All of these

Answer

To determine the applicability of Kolbe's electrolytic method on the given compounds, we need to understand the process and the types of compounds suitable for this method.

### Step-by-Step Solution:

1. **Understanding Kolbe's Electrolytic Method**:
- Kolbe's electrolytic method involves the electrolysis of sodium or potassium salts of carboxylic acids in aqueous solution. This process leads to the formation of alkanes as the main products.

2. **Identifying the Reactants**:
- The method specifically applies to sodium and potassium carboxylates. These are the salts formed from carboxylic acids by reacting them with sodium or potassium hydroxide.

3. **Electrolysis Process**:
- During electrolysis, the carboxylate ions (RCOO⁻) are oxidized at the anode, resulting in the formation of alkyl radicals (R•). These radicals can then couple to form alkanes (R-R).

4. **Analyzing the Given Options**:
- We need to check if the provided compounds are sodium or potassium carboxylates. If they are, they can undergo Kolbe's electrolysis.

5. **Conclusion**:
- If all the given options are sodium or potassium carboxylates, then Kolbe's electrolytic method can be applied to all of them. Therefore, the answer would be **Option 4: All of these above**.