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Question

In the preparation of alkanes, a concentrated aqueous solution of sodium or potassium salts of saturated carboxylic acid are subjected to :

A
Hydrolysis
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B
Oxidation
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C
Hydrogenation
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D
Electrolysis
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Solution

The correct option is D Electrolysis
Salts of carboxylic acids are electrolysed to form alkyl radical which combines to form alkane. CO2 is released at anode during the process. This method is called Kolbe's electrolysis method.
At anode: oxidation takes place

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