<Dd> CH COOH → CH COO → CH COO → CH + CO </Dd> <Dd> 2CH → CH CH </Dd> <P> Another example is the synthesis of 2, 7 - dimethyl - 2, 7 - dinitrooctane from 4 - methyl - 4 - nitrovaleric acid: </P>

How is ethene prepared from sodium acetate solution by kolbe's electrolytic method