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

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.