Write answers to the following.

Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.

Types of reaction with reference to oxygen and hydrogen:

i. Decomposition reaction

2H₂O₂→ 2H₂O + O₂

In this reaction hydrogen peroxide undergoes decomposition

to form water and oxygen gas.

ii. Redox reaction

CuO + H₂→ Cu + H₂O

In this reaction, oxidation and reduction taking place at the

same time.

iii. Electrolysis of water (decomposition)

2H₂O(l) → 2H₂↑ + O₂↑

In this decomposition of water takes place to release hydrogen and oxygen gas.