1. How would you bring about the following conversions? Name the process and write the reaction involved. (a) ethanol to ethene. b) propanol to propanoic acid. Write the reactions.

Soln:

1. Ethene is formed when ethanol is heated at 443 K with excess of concentrated sulphuric

CH₃CH₂OH Con H₂SO₄ CH₂=CH+H₂O

1. Propanol is treated with alkaline Potassium permanganate or acidified Potassium-di-chromate to obtain propanoic acid.

CH₃CH₂CH₂OH Alk KMnO₄/ acidified K₂Cr₂O₇ CH₃CH₂COOH