Identify the correct option for the following reaction:

$2 K C l O_{3} (s) ⟶ 2 K C l (s) + 3 O_{2} (g)$

Endothermic & Double displacement reaction

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Endothermic & Decomposition reaction

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Endothermic & Reversible reaction

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Endothermic & Precipitation reaction

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Solution

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

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Explain giving one example for each of the following chemical changes :

(a) Double decomposition

(b) Thermal dissociation

(d) Displacement reaction

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