The equation shows a redox reaction between iron(chloride and chlorine gas. 2FeCl 2 + Cl 2 → 2FeCl 3 Which equation describes the reduction process in this reaction?

5070_s15_qp_12

MCQ

2015

Paper 1, Variant 2

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Which equation does not represent a redox reaction?

5070_s16_qp_11

MCQ

2016

Paper 1, Variant 1

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How can the following reaction be described?

5070_s16_qp_12

MCQ

2016

Paper 1, Variant 2

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Which reactions involve oxidation and reduction?

5070_s18_qp_12

MCQ

2018

Paper 1, Variant 2

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Reduction can be defined in terms of the gain or loss of oxygen or of hydrogen or of electrons. Which row correctly describes all three definitions of reduction?

5070_s19_qp_12

MCQ

2019

Paper 1, Variant 2

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Many reactions can be classified as redox reactions. Which equations show redox reactions?

5070_s20_qp_12

MCQ

2020

Paper 1, Variant 2

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In which equations is the change in the underlined species correct?

5070_s21_qp_11

MCQ

2021

Paper 1, Variant 1

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The combustion of methane is a redox reaction. CH4 + 2O2  CO2 + 2H2O Which statement about this reaction is correct?

5070_s23_qp_11

MCQ

2023

Paper 1, Variant 1

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Which method of preparation of magnesium sulfate is an example of a redox reaction?

5070_s23_qp_11

MCQ

2023

Paper 1, Variant 1

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Many reactions involve oxidation and reduction. Which statement is correct?

5070_s24_qp_11

MCQ

2024

Paper 1, Variant 1

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