The following reaction is used for the preparation of oxygen gas in the laboratory
$2KClO_3(s) \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.

AcademicChemistryNCERTClass 10

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

Explanation: Potassium chlorate decomposes to give potassium chloride and oxygen. This is a decomposition reaction. As heat is absorbed during the process, hence it is endothermic in nature.

raja
Updated on 10-Oct-2022 13:27:09

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