Question

What is the by-product formed in this reaction $R-COONa\underset{\Delta }{\overset{NaOH,CaO}{\to }}R-H+?$

• A. $NaHC{O}_3$
• B. $C{O}_2$
• C. $N{a}_{2}HC{O}_3$
• D. $N{a}_{2}C{O}_3$

Answer 1

Answer: (D)

Carboxylic acids lose carbon dioxide to form hydrocarbons when their sodium salts are heated with sodalime. The reaction is known as decarboxylation.
$R-COONa\underset{\text{Heat}}{\overset{NaOH\text{ and }CaO}{\to }}RH+N{a}_{2}C{O}_3$