Question

In Kolbert electrolysis of aqueous solution of sodium and potassium salts of carboxylic acids,the gas evolved is,,
a,CO ,,B,,CO2,,C,,H2,,D,,SO2
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Answer 1

The Kolbe electrolysis or Kolbe reaction is an organic reaction named after Hermann Kolbe.[1] The Kolbe reaction is formally a decarboxylative dimerisation of two carboxylic acids (or carboxylate ions). The overall reaction is:

Electrólisis de Kolbe.png

If a mixture of two different carboxylates are used, all combinations of them are generally seen as the organic product structures:

3 R1COO− + 3 R2COO− → R1−R1 + R1−R2 + R2−R2 + 6 CO2 + 6 e−

The reaction mechanism involves a two-stage radical process: electrochemical decarboxylation gives a radical intermediate, which combine to form a covalent bond.[2] As an example, electrolysis of acetic acid yields ethane and carbon dioxide:

CH3COOH → CH3COO− → CH3COO· → CH3· + CO2

2CH3· → CH3CH3

Another example is the synthesis of 2,7-dimethyl-2,7-dinitrooctane from 4-methyl-4-nitrovaleric acid:[3]

Kolbe electrolysis, synthesis of 2,7-Dimethyl-2,7-dinitrooctane

Answer 2

Answer:

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