Question
How is ethane prepared in the laboratory?

Answer

Laboratory preparation of ethane :
When the mixture of sodium propionate and soda-lime is taken in the boiling tube and heated the ethane gas is evolved. It is also collected by downward displacement of water.
$
C _2 H _5 COONa + NaOH \xrightarrow{ CaO , 300^{\circ} C } Na _2 CO _3+ C _2 H _6
$

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