Question

The following reaction is used for the preparation of oxygen gas in the laboratory. 3 2 Heat 2KClO (s) 2KCl(s) 3O (g) ï¾ï¾ï¾ï® ï« Which of the following statement about the reaction is correct ?
(1) It is a decomposition reaction and endothermic in nature.
(2) It is a combination reaction.
(3) It is a decomposition and accompanied by release of heat.
(4) It is a photochemical decomposition reaction and exothermic in nature.

Answer 1

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1 is the correct answer.

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Answer 2

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 which is endothermic in nature.

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