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Unit 07 - Redox Reactions
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Unit 07 - Redox Reactions
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Cambridge Chemistry - iGCSE2017-19
Year 09-10
Unit 07 - Redox Reactions
,1 – Assessment Objectives 7.2 – Redox and Electron 7.3 – Redox & Changes in 7.4 – Oxidising &
7.1 – Oxidation and Reduction
Transfer Oxidation State Reducing Agents
AO1 Knowledge with understanding
Candidates should be able to:
A. Recall, select and present relevant factual information.
B. Demonstrate and apply knowledge with understanding of the correct use
of the following in the travel and tourism industry:
i. commonplace terms, definitions and facts
ii. major concepts, models, patterns, principles and theories.
AO2 Investigation and analysis of evidence
Candidates should be able to:
A. Collect evidence from both primary and secondary sources, under
guidance or independently, and be aware of the limitations of the various
collection methods.
B. Record, classify and organise relevant evidence from an investigation in
a clear and coherent form.
C. Present the evidence in an appropriate form and effective manner, using
a wide range of appropriate skills and techniques, including verbal,
numerical, diagrammatic, cartographic, pictorial and graphical methods.
D. Apply knowledge and understanding to select relevant data, recognise
patterns and analyse evidence.
,1 – Assessment Structure 7.2 – Redox and Electron 7.3 – Redox & Changes in 7.4 – Oxidising &
7.1 – Oxidation and Reduction
Transfer Oxidation State Reducing Agents
All candidates must enter for three papers.
Core candidates take: Extended candidates take:
Paper 1 45 minutes Paper 2 45 minutes
A multiple-choice paper consisting of 40 items A multiple-choice paper consisting of 40
of the four-choice type. items of the four-choice type.
This paper will test assessment objectives This paper will test assessment objectives
AO1 and AO2. Questions will be based on the AO1 and AO2. Questions will be based on
Core syllabus content. the Extended syllabus content (Core and
This paper will be weighted at 30% of the Supplement).
final total mark. This paper will be weighted at 30% of the
final total mark.
And: And:
Paper 3 1 hour 15 Paper 4 1 hour 15
minutes minutes
A written paper consisting of short-answer A written paper consisting of short-answer
and structured questions. and structured questions.
This paper will test assessment objectives This paper will test assessment objectives
AO1 and AO2. Questions will be based on the AO1 and AO2. Questions will be based on
Core syllabus content. 80 the Extended syllabus content (Core and
marks Supplement). 80 marks
This paper will be weighted at 50% of the This paper will be weighted at 50% of the
final total mark. final total mark.
, 1 – Assessment Structure 7.2 – Redox and Electron 7.3 – Redox & Changes in 7.4 – Oxidising &
7.1 – Oxidation and Reduction
Transfer Oxidation State Reducing Agents
All candidates take.
Either: Or:
Paper 5 1 hour 15 minutes Paper 6 1 hour
Practical Test Alternative to Practical
This paper will test assessment This paper will test assessment
objective AO3. objective AO3.
Questions will be based on the Questions will be based on the
experimental skills in Section 7. experimental skills in Section 7.
The paper is structured to assess The paper is structured to assess
grade ranges grade ranges
A*–G. A*–G.
40 marks 40 marks
This paper will be weighted at 20% This paper will be weighted at
of the final total mark. 20% of the final total mark.
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