Question

give one one example oxidation and reduction.

Answer 1

HI !

A reaction in which one reactant gets oxidised and other get reduced , is known as redox reaction.

Here is an example , where both reduction and oxidation takes place .[ redox reaction ]

before that lets see what is oxidation and reduction :-

Oxidation : Gaining of oxygen OR Losing of hydrogen

Reduction : Gaining of Hydrogen OR Losing of Oxygen


here is the eg:-
CuO + H₂  -----> Cu + H₂O



Here ,

CuO gets reduced [ it loses oxygen ] and become Cu

H₂ gets oxidized  [ it gains oxygen ] and becomes H₂O

Substance that gets oxidised = H₂
Substance that gets reduced = CuO

Also ,

Oxidising agent = substance that gets reduced = CuO
Reducing agent = substance that gets oxidized = H₂

Answer 2

#Oxidation and reduction
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★ Oxidation:-
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☆ Oxidation → Loss of electron by substance is called oxidation.

☆ For example,

Na → Na^+ + e^-

2Cl^- → Cl2 + 2e^-.

☆ During this reaction, positive valency increases while negative valency decreases.
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★ Reduction:-
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☆ Reduction → Gain of electron by substance is called reduction.

☆ For example,

Zn^2+ + 2e^- → Zn

Cl2 + 2e^- → 2Cl^-.

☆ During this reaction, positive valency decreases while negative valency increases.