Question

38. Write chemical reactions to represent what happens when: i) Ethanol burns in air. ii) Ethanol is treated with sodium metal. ii) Ethanol is heated with alkaline KMnO4. iv) Ethanol is heated with ethanoic acid in presence of few drops of Conc.H2S04. v) Ethanol is heated at 443K in presence of Conc.H2SO4.

Answer 1

Ethanol burns in air

C2H5OH + 3O2 -----> 2CO2 + 3H2O.

Ethanol is heated with alkaline KMnO4

C2H5OH+[O]---alkaline kmno4---->CH3COOH+H2O

Ethanol is treated with sodium metal.

2CH₃- CH₂-OH +2Na——>2 CH₃- CH₂- ONa + H₂

Ethanol is heated with ethanoic acid in presence of few drops of Conc.H2S04.

C2H5OH+CH3COOH---H2SO4-->CH3COOC2H5+H2O

Ethanol is heated at 443K in presence of Conc.H2SO4.

CH3-CH2-OH → (H2SO4 + heat) → CH2=CH2 + H2O