1.

Define the term decomposition reaction . Give one example each of thermal decomposition and electrolytic decomposition.

Answer»

Solution :In a decomposition, a single reactant breaks down into two or more simple products .
When a decomposition reaction is carried out by heating , it is called thermal decomposition reaction.
`underset(("Calcium carbonate"))(CaCO_(3)(s))overset ("Heat") rarr underset(("Calcium oxide"))(CAO(S))+underset(("Carbon dioxide"))(CO_(2)(g))`
When a decomposition reaction is carried out with the help of electric current, the PROCESS is calledelectrolysis .
`underset("Water")(2H_(2)O(1))overset("Electric current") rarr underset(("HYDROGEN gas"))(2H_(2)(g))+underset(("Oxygen gas"))(O_(2)(g))`


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