BRAINCAKEExam-style Question 2
Question (4 marks): When copper(I) oxide is added to warm dilute sulfuric acid, a pink-brown solid and a blue solution form:
Cu2O (s) + H2SO4 (aq) → Cu (s) + CuSO4 (aq) + H2O (l)
(a) Give the oxidation number of copper in each copper species. (b) Explain why this is a disproportionation reaction. (c) Give the systematic name of CuSO4.
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Key terms in this lesson
- oxidation number
- A number assigned to an atom showing its degree of oxidation, based on the electrons it would gain or lose if all bonds were ionic.
More in Oxidation and Reduction
- Example Question 1
- Example Question 2
- Ionic Equations
- Exam-style Question 1
- Exam-style Question 3
- Exam-style Question 4
- Exam-style Question 5
- Exam-style Question 6
All 14 lessons in Oxidation and Reduction · All Edexcel AS-level Chemistry topics