The preparation of ethane by electrolysis of aqueous solution of potassium acetate is called as

Options

A. Wurtz reaction
B. Sabatier-Senderen's reaction
C. Kolbe's synthesis
D. Grignard reaction

Explanation

To solve the question regarding the preparation of ethane by electrolysis of an aqueous solution of potassium acetate, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- The question asks about the preparation of ethane (C2H6) through electrolysis. In this case, we are dealing with potassium acetate (CH3COOK) as the electrolyte.

2. **Electrolysis Process**:
- During electrolysis, the potassium acetate dissociates into its ions: potassium ions (K⁺) and acetate ions (CH3COO⁻). The electrolysis process involves the movement of these ions towards the electrodes.

3. **Formation of Ethane**:
- At the cathode (negative electrode), the acetate ions undergo reduction. The reaction can be represented as:
\[ 2 \text{CH}_3\text{COO}^- + 2 \text{H}_2\text{O} \rightarrow \text{C}_2\text{H}_6 + 2 \text{CO}_2 + 2 \text{OH}^- \]
- This reaction indicates that ethane (C2H6) is produced along with carbon dioxide (CO2) and hydroxide ions (OH⁻).

4. **Decarboxylation Reaction**:
- The process involves a decarboxylation reaction, where the acetate ions lose a carbon dioxide molecule. This is a key step in the formation of ethane.

5. **Naming the Reaction**:
- The specific method of preparing ethane through the electrolysis of potassium acetate is known as **Kolbe's Electrolysis** or **Kolbe's Synthesis**.

6. **Conclusion**:
- Thus, the preparation of ethane by electrolysis of an aqueous solution of potassium acetate is called **Kolbe's synthesis**.

### Final Answer:
The preparation of ethane by electrolysis of aqueous solution of potassium acetate is called **Kolbe's synthesis**.

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