Question

give any decomposition reaction which is used as a lab preparation method for oxygen gas

Answer 1

When exposed to sunlight or metallic impurities, Hydrogen Peroxide rapidly decomposes to
Oxygen gas:
2 H2O2(aq) ====2 H2O(l) + O2(g) (Eq, 3)
This is a key reaction of Hydrogen Peroxide.

Answer 2

• When exposed to sunlight or metallic impurities, Hydrogen Peroxide rapidly decomposes .

• 2 H2O2(aq) ====2 H2O(l) + O2(g) (Eq, 3)

• This is a key reaction of Hydrogen Peroxide.