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Question
How will you prepare propane from a sodium salt of fatty acid?
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Solution
\[\ce{CH3 \underset{\text{(Sodium Salt of butyric acid)}}{- CH2 - CH2 - COONa} ->[NaOH/CaO] \underset{\text{(Propane)}}{CH3 - CH2} - CH3 + Na2CO3}\]
Sodium salt of butyric acid on heating with sodalime gives propane.
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\phantom{............................}|\\
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