How will you get ethene from ethanol?

Asked by Topperlearning User | 26th Mar, 2014, 10:48: AM

Expert Answer:

Alcohols undergo dehydration in the presence of  protonic acids(conc. H2SO4 or H3PO4) to give either alkenes or ethers.

Example : When ethanol is heated with excess of conc. H2SO4 at 433-443K, ethene is obtained as the major product.

CH3CH2OH        CH2=CH2   + H2O

Answered by  | 26th Mar, 2014, 12:48: PM