Question

Why is potassium chlorate not used for laboratory preparation of oxygen?

Answer 1

• Preparation of oxygen by using potassium chlorate is the most frequently used method. It is prepared through the decomposition of potassium chlorate . The potassium chlorate is heated and oxygen is evolving leaving KCL.
• CHEMICAL EQUATION :
• $2kclo3(s) = 2kcl (s) + 3o2(g)$
• In this reaction manganese dioxide act as a catalyst.
• The MnO2 , causes the reaction to take place more rapidly at a lower temperature.

Answer 2

Answer:

Preparation of oxygen by using potassium chlorate is the most frequently used method. It is prepared through the decomposition of potassium chlorate . The potassium chlorate is heated and oxygen is evolving leaving KCL

Explanation: