How butane can be obtained from salt of propanoic acid? Give equation.

Explanation

To obtain butane from the salt of propanoic acid, we can use the Kolbe electrolysis method. Here’s a step-by-step breakdown of the process:

### Step 1: Identify the Salt of Propanoic Acid
The salt of propanoic acid can be represented as potassium propanoate (CH3CH2COOK).

### Step 2: Electrolysis of the Salt
When we perform electrolysis on the aqueous solution of potassium propanoate, the following reactions occur at the electrodes:

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