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Q.
What is the by-product formed in this reaction
$R- COONa \xrightarrow[\Delta]{ NaOH , CaO } R- H +?$
Aldehydes Ketones and Carboxylic Acids
Solution:
Carboxylic acids lose carbon dioxide to form hydrocarbons when their sodium salts are heated with sodalime. The reaction is known as decarboxylation.
$R- COONa \xrightarrow[\text{Heat}]{ NaOH \text { and } CaO } R H + Na _{2} CO _{3}$