Question

Which catalyst is used in the thermal decomposition of KCIO₃ (potassium chlorate)?

1. Molybdenum
2. Glycerol
3. Ethanol
4. Manganese dioxide

Answer 1

Correct Answer - Option 4 : Manganese dioxide

   The correct answer is Manganese dioxide.

• Manganese dioxide catalyst is used in the thermal decomposition of KCIO₃ (potassium chlorate).
  •  A catalyst is a substance that causes an increase in the rate of a chemical reaction without being used up in the reaction.

• Potassium chlorate is a compound containing potassium, chlorine, and oxygen, with the molecular formula KClO_3.
  • In its pure form, it is a white crystalline substance.
  • It is the most common chlorate in industrial use.
• It is used -
  • as an oxidizing agent,
  • to prepare oxygen,
  • as a disinfectant,
  • in safety matches,
  • in explosives and fireworks,
  • in cultivation, forcing the blossoming stage of the longan tree, causing it to produce fruit in warmer climates.