Q.

Is it true that potassium chloride is formed from potassium chlorate?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
In a chemical reaction, where a chemical compound breaks on heating to give two or more two chemical compounds, the reaction is called a decomposition reaction. It is considered the opposite of a combination reaction.
Potassium chloride is formed from potassium chlorate. In the presence of a MnO2 catalyst, when  KClO3 is heated, it breaks down and produces potassium chloride and oxygen gas. This is an example of a decomposition reaction.
The chemical equation is:
             
2KClO3 → 2KCl + 3O2
  
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