1.

What is meant by decomposition reaction ? Give examples.

Answer»

Solution :A chemical reaction in which a single compound on heating or in presence of sunlight forms more than one products is called decomposition reaction.
Examples :
(1) `CaCO_(3) (s) overset("Heat")to underset("Calcium OXIDE")(CaO(s))+CO_(2)(g)`
(2) `2FeSO_(4)(s) overset("Heat")to underset("Ferric oxide")(Fe_(2)O_(3)(s))+ SO_(2)(g)+SO_(3)`
(3) `underset("Lead nitrate")(2Pb(NO_(3))_(2)(s)) overset("Heat")to underset("Lead oxide")(2PbO(s))+4NO_(2)(g)+SO_(3)`


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