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Question

Chemistry Question on Hydrocarbons

In which of the following methane is formed?

A

\ceCH3COOH−>[[H]][]\ce{ CH3COOH ->[{[H]}][{}] }

B

\ceCH3COOH−>[NaOH/CaO][]\ce{ CH3COOH ->[{NaOH/CaO}][{}] }

C

\ceCH3COOH−>[[O]][]\ce{ CH3COOH ->[{[O]}][{}] }

D

\ceCH3CH2COOH−>[NaOH/CaO][]\ce{ CH3CH2COOH ->[{NaOH/CaO}][{}] }

Answer

\ceCH3COOH−>[NaOH/CaO][]\ce{ CH3COOH ->[{NaOH/CaO}][{}] }

Explanation

Solution

CH3COOH−>[NaOH/CaO]CH4+Na2CO3 {CH3COOH ->[NaOH/CaO] CH4 + Na2CO3} When sodium salt of carboxylic acids are heated with (NaOH + CaO), alkane is obtained with one less carbon atom than the acid, and the process is called decarboxylation.