Question

explain the types of reaction with reference to Oxygen and hydrogen illustrate with example​

Answer 1

$\implies$There are main three types of chemical reactions with reference to oxygen and hydrogen:

1. Combination Reaction:-

When two atoms react to form a compound, it is know as combination reaction.

For example: 2H2 + O2→ 2H2O

2. Decomposition Reaction:-

When a compound breaks into simple molecular substances from which it is made up of, it is know as decomposition reaction.

For example: 2H2O→ 2H2 + O2

3. Oxidation and reduction reaction:-

Oxidation:

• The addition of oxygen to a substance is called oxidation.
• The removal of hydrogen to a substance is called oxidation.

Reduction:

• The addition of hydrogen to a substance is called reduction.
• The removal of oxygen to a substance is called reduction.

For example: CuO +H2→Cu + H2O

In the above reaction, copper oxide is changing to Cu. That is, oxygen is being removed from copper oxide. So, copper oxide is being reduced to copper.

In the above reaction, H2 is changing into H2O. That is , oxygen is being added to hydrogen. So, hydrogen is being oxidised to water.

Answer 2

Answer:

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Explanation:

Types of reaction with reference to oxygen and

hydrogen are oxidation reaction and reduction

reaction.

Oxidation reaction: The chemical reaction in

which a reactant combines with oxygen or loses

hydrogen to form the product is called Oxidation

reaction.

e.g. 2Mg + O2 → 2MgO

Here O2

combines with magnesium (Mg) to form

magnesium oxide (MgO)

MgH2 → Mg + H2

Here MgH2 loses hydrogen.

Reduction reaction: The chemical reaction in

which a reactant combines with hydrogen or

loses oxygen to form product is called reduction

reaction.

e.g. C + 2H2 → CH4

Here carbon combines with hydrogen and forms

compound CH4 (Methane).

HgO ∆ Hg + O2

Here Mercuric oxide loses oxygen to form

mercury.