1.

What is called an exothermic chemical reaction ? Give examples.

Answer»

Solution :CHEMICAL reaction in which heat is released during the formation of product is called an exothermic reaction.
Examples :
(1) Burning of natural gas :
`CH_(4)(G) + 2O_(2)(g) to CO_(2)(g) + 2H_(2)O(g)`
(2)Burning of coal :
`C(s) + O_(2)(g)toCO_(2)(g) + "Heat"`
(3) Formation of compost manure by decomposition of vegetable matter is also an example of an exothermic reaction.


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