Which of the following is not formed during Kolbe's electrolysis of potassium propanoate?

C_{4} H_{10}

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C_{2} H_{5} C O O C_{2} H_{5}

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C H_{3} C O O C_{2} H_{5}

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(C H_{3} C H_{2} C O)_{2} O_{2}

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Solution

The correct option is D $(C H_{3} C H_{2} C O)_{2} O_{2}$
The Kolbe's electrolysis is the electrochemical oxidative decarboxylation of carboxylic acid salts. During Kolbe's electrolysis, potassium propanoate $C_{2} H_{5} C O O K$ forms butane, ethyl propionate $C_{2} H_{5} C O O C_{2} H_{5}$ and ethyl acetate $C H_{3} C O O C_{2} H_{5}$ . However, $(C H_{3} C H_{2} C O)_{2} O_{2}$ is not formed in the reaction.

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