Question

(d) Potassium chlorate decomposes rapidly in the presence of manganese dioxide to liberate oxygen. please tell fast​

Answer 1

When potassium chlorate (KClO3) is heated in the presence of manganese dioxide catalyst, it decomposes( to form potassium chloride and oxygen gas.)

Answer 2

• The chemical formula of potassium chlorate is $KClO_3$.
• The chemical formula of manganese dioxide $MnO_2$.

• When potassium chlorate is heated in presence of manganese dioxide as a catalyst decomposed to give potassium chloride (KCl) along with oxygen is obtained.

The reaction is -$2KClO_3\rightarrow 2KCl+3O_2$

So, 2 moles of potassium chlorate reacts to form 3 moles of oxygen along with 2 moles of potassium chloride.