Question

Compound heated with soda lime to obtain $C_2{H}_6$ in the laboratory is :

• A. $C{H}_{3}C{H}_{2}COOH$
• B. $C{H}_{3}C{H}_{2}CHO$
• C. $C{H}_{3}C{H}_{2}COC{H}_3$
• D. $C{H}_{3}C{H}_{2}COONa$

Answer 1

The correct option is D $C{H}_{3}C{H}_{2}COONa$

Reaction: $C{H}_{3}C{H}_{2}COONa+NaOH\stackrel{CaO}{\to }{C}_2{H}_6+N{a}_{2}C{O}_3$

Decarboxylation of sodium salts of carboxylic acids produces an alkane containing 1 less carbon than the parent carboxylic acid.