Question

Explain the given reactions with examples:

(a) Combustion reaction

(b) Oxidation reaction

(c) Substitution reaction

Answer 1

(a) Combustion reaction: Carbon compounds burns in oxygen to produce carbon dioxide along with release of large amount of heat and light.

CH₄     +    2O₂    ------>   CO₂  +  2H₂O  +Heat and light

(b) Oxidation reaction: Ethanol is oxidised to ethanoic acid in the presence of alkaline KMnO₄ b(oxidising agent) on heating.

(c) Substitution reaction: In the presence of sunlight, chlorine replaces the hydrogen atom of hydrocarbons.

CH₄  +  Cl₂ ---->hv   CH₃Cl   +   HCl