1
Q
Oxidation:
A
gains oxygen
loses electrons
reducing agent
2
Q
Reduction
A
loses oxygen
gains electrons
oxidising agent
3
Q
Mg → MgO
a. Oxidation
b. Reduction
A
a. Oxidation
4
Q
CuO → Cu
a. Oxidation
b. Reduction
A
b. Reduction
5
Q
Cu2+ → Cu
a. Oxidation
b. Reduction
A
b. Reduction
6
Q
S2- → S
a. Oxidation
b. Reduction
A
a. Oxidation
7
Q
What in the following equation is the Oxidising agent?
Mg + CuO → MgO + Cu
A
CuO
8
Q
Define oxidation by electron mean
A
A chemical process by which an atom or an ion loses electrons
9
Q
Define oxidation by oxygen mean
A
A chemical process by which an atom or an ion gains oxygen
10
Q
Which reaction represent oxidation and reduction?
Zn + Cu2+ → Zn2+ + Cu
A
Oxidation: Zn
Reduction: Cu2+
Redox
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