Which of the statement is correct about the following reaction?
$2 K C l O_{3} (s) H e a t - --- \to c a t a l y s t 2 K C l (s) + 3 O_{2} (g)$

It is a decomposition reaction and endothermic in nature.

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It is a combination reaction.

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It is a decomposition reaction and is accompanied by the evolution of heat.

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It is a photochemical decomposition reaction and exothermic in nature.

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Solution

The correct option is A It is a decomposition reaction and endothermic in nature.
It is a decomposition reaction as the potassium chlorate compound breaks to form potassium chloride and oxygen. This reaction requires heat as source of energy to break down the compound so it is endothermic in nature.

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