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3.3 Types of chemical reactions

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Question 20
H

A student adds zinc powder to blue copper sulfate solution. The blue colour fades and a brown solid forms.

Zn+CuSO4→ZnSO4+Cu \mathrm{Zn + CuSO_{4} \rightarrow ZnSO_{4} + Cu} Zn+CuSO4​→ZnSO4​+Cu

Statement 1: Zinc atoms are oxidised.

Statement 2: Sulfate ions are reduced.

Statement 3: Copper ions act as an oxidising agent.

Which statements are correct?

[1]
A

1 only

B

1 and 2 only

C

1 and 3 only

D

2 and 3 only

Markscheme

3.3 Types of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Types of chemical reactions

53 exam-style questions on OCR GCSE Chemistry 3.3 Types of chemical reactions, covering 3.3.1 Oxidation and reduction in terms of oxygen, 3.3.2 Acids, alkalis and neutralisation, 3.3.3 The pH scale and measuring pH, 3.3.4 Oxidation and reduction in terms of electrons, 3.3.5 Dilute and concentrated, weak and strong acids, and 3.3.6 Hydrogen ion concentration and pH. Each one has a worked solution and a mark scheme showing where the marks go.

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