The following reaction is used for the preparation of oxygen gas in the laboratory

2KClO3(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.

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2 Answers

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

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The correct option is (a) It is a decomposition reaction and endothermic in nature

It is a decomposition reaction. Since heat energy is supplied, the reaction is of endothermic nature

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