What will be formed in the following Kolbe's electrolysis of an aqueous solution of potassium maleate ?
Correct answer: C. Ethyne
- A. Ethene
- B. Ethane
- C. Ethyne
- D. Methane
Explanation
Kolbe's electrolysis of the salt of an unsaturated dicarboxylic acid like maleic acid involves decarboxylation and radical formation at the double bond. The resulting radicals combine to form a triple bond, yielding ethyne (acetylene).
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Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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