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Following reaction is used for the preparation of oxygen gas in the laboratory.

\(2KClO_3(s)\) \(\overset{\xrightarrow{Heat}}{Catalyst}\)  \(2KCl(s)+3O_2{g}\)

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 the release of heat.

(d) It is a photochemical decomposition reaction and exothermic in nature.

1 Answer

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(a) It is a decomposition reaction and endothermic in nature.

In this reaction, potassium chlorate absorb heat and decomposes into potassium chloride and oxygen gas. It is an example of endothermic reaction.

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