Question

how will you prepare Ethane from sodium salt of fatty acid​

Answer 1

Reaction with sodalime{NaOH+CaO}

When you react sodium salt of ethanoic acid(C2H5COONa) with sodalime then a product having one carbon atom less means ethane will be formed.

Reaction is in the picture.It is called as DECARBOXYLATION.

Answer 2

Answer:

Sodium butanoate ( sodium salt of butanoic acid ) on heating with sodalime yields propane by decarboxylation.

CH3CH2CH2COONa + NaOH = CH3CH2CH3 + Na2CO3

Sodalime is a solid mixture of caustic soda and quicklime (NaOH + CaO).

Explanation: