Question

e. Which of the following is used as a catalyst in the decomposition of potassium chlorate (KCI03)?
(a) Potassium chloride
(b) Oxygen
(c) Sulphur dioxide
(d) Manganese dioxide​

Answer 1

Answer:

(d) Manganese dioxide

Explanation:

the presence of a manganese dioxide catalyst, when potassium chlorate (KClO3) is heated, it breaks down to form potassium chloride and oxygen gas.