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Q.
Formation of diethyl ether from ethanol is based on a
AMUAMU 2004
Solution:
Diethyl ether can be prepared by the dehydration of ethanol with conc. $H _{2} SO _{4}$ at $410\, K$. In this method excess of alcohol is heated with conc. $H _{2} SO _{4}$ at $410\, K$.
In this reaction the temperature must be controlled because at higher temperature $(443 K )$, the alcohols get dehydrated to alkenes.
$CH _{3} CH _{2} OH \xrightarrow[443\,K]{ H _{2} SO _{4}}CH _{2}= CH _{2}+ H _{2} O$
