Chemistry: Redox Reactions: Oxidation and reduction in terms of electrons; Oxidising agents and reducing agents

Oxidation

Reduction

OIL RIG

Oxidising Agent

Reducing Agent

Redox Reaction

In the following equation is Oxygen reduced or oxidised?
2Mg + O2 -> 2MgO

Disproportionation

Oxidation Number

State three rules for determining oxidation number.

What are the oxidation numbers of the elements in the following ion:
(SO3)2-

What are the oxidation numbers of the elements in the following ion:
[CuCl4]2-

What are the oxidation numbers of the elements in the following ion:
H2O2

State the change in oxidation number to zinc in the following ionic half-equation and state whether zinc has been oxidised or reduced:
Zn(s) -> Zn2+(aq) + 2e-

State the change in oxidation number to manganese in the following ionic half-equation and state whether manganese has been oxidised or reduced:
MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O

Is the following reaction an example of a disproportionation reaction?
Mg + 2HCl -> MgCl2 + H2

Is the following reaction an example of a disproportionation reaction?
2H2O2 -> 2H2O + O2

What is a systematic name?

What is the oxidation state of copper in copper (II) oxide?

What is the oxidation number of lead in lead (IV) oxide?

Combine the following ionic half-equations:
1. MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O
2. H2O2 -> 2H+ + O2 + 2e-

	Created by Phoebe Johnson over 7 years ago

Both topics (oxidation and reduction in terms of electrons, and, oxidising agents and reducing agents) from Topic 3, redox reactions, in the inorganic section of the Year 1 Edexcel Chemistry syllabus.