1.

The following reaction is used for the preparation of oxygen gas in the laboratory2KClO3(s) Heat Catalyst → 2KCl(s) + 3O2(g)Which of the following statement(s) is (are) correct about the reaction?(A) It is a decomposition reaction and endothermic in nature.(B) It is a combination reaction.(C) It is a decomposition reaction and accompanied by release of heat.(D) It is a photochemical decomposition reaction and exothermic in nature.

Answer»

(D) Heating copper wire in presence of air at high temperature.



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