Question:
Which one of the following reaction is called Kolbe’s method?}
Which one of the following reaction is called Kolbe’s method?}
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Kolbe electrolysis is used to prepare higher alkanes by electrolysis of sodium or potassium salts of carboxylic acids.
Updated On: Apr 24, 2026
- Hydrogenation of propyne with Pt/Pd/Ni
- Chlorination of chloroform
- Treatment of alkyl halides with sodium metal in dry ethereal solution
- Electrolysis of an aqueous solution of potassium carboxylates
- Isomerization of n-hexane to 2-methylpentane in presence of anhy. AlCl\(_3\)/HCl
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The Correct Option is D
Solution and Explanation
Kolbe’s method, also called Kolbe electrolysis, involves the electrolysis of aqueous solutions of sodium or potassium salts of carboxylic acids.
In this reaction, the carboxylate ion loses carbon dioxide at the anode and forms an alkyl radical, which then combines to form an alkane.
So the defining feature of Kolbe’s method is:
\[
\text{electrolysis of an aqueous solution of potassium carboxylates}
\]
Hence, the correct answer is: \[ \boxed{(D)} \]
Hence, the correct answer is: \[ \boxed{(D)} \]
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