$$\(12 \mathrm{KMnO}_{4}\)$$ is an oxidising agent. Its reaction with $$\(\mathrm{Fe}^{2+}\)$$ is shown in the following ionic equation.
A.
B.
C.
D.
Exam No：9701_m24_qp_12 Year：2024 Question No：12
Answer:
C
Knowledge points:
6.1.1 calculate oxidation numbers of elements in compounds and ions
6.1.2 use changes in oxidation numbers to help balance chemical equations
6.1.3 explain and use the terms redox, oxidation, reduction and disproportionation in terms of electron transfer and changes in oxidation number
6.1.4 explain and use the terms oxidising agent and reducing agent
6.1.5 use a Roman numeral to indicate the magnitude of the oxidation number of an element
Solution:
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