1.

Explain the given reactions with examples: (a) Combustion reaction (b) Oxidation reaction (c ) Substitution reaction

Answer»

Solution :(a) Combustion reaction: Carbon compounds burns in oxygen to PRODUCE carbon dioxide alongwith release of large AMOUNT of heat and light.
`CH_(4)+2O_(2) to CO_(2)+2H_(2)O+` Heat and light
(b) Oxidation reaction: Ethanol is oxidised to ethanoic acid in the presence of alkaline `KMnO_(4)` (OXIDISING agent) on heating.
`CH_(3)CH_(2)OH underset("Heat") overset("Alk. "KMnO_(4))to CH_(3)COOH`
(c ) Substitution reaction: In the presence of sunlight, chlorine replaces the hydrogen ATOM of hydrocarbons.
`CH_(4)+Cl_(2) overset(hv) to CH_(3)Cl+HCl`


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