Question 5.
Write answers to the following.
Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.
Answer:
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.
