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4.1 Predicting chemical reactions

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Question 5
H

Chlorine gas is bubbled through potassium bromide solution.

Which ionic equation represents the reaction?

[1]
A

Br2+2Cl−→2Br−+Cl2\mathrm{Br_{2} + 2Cl^{-} \rightarrow 2Br^{-} + Cl_{2}}Br2​+2Cl−→2Br−+Cl2​

B

Cl2+Br−→Cl−+Br2\mathrm{Cl_{2} + Br^{-} \rightarrow Cl^{-} + Br_{2}}Cl2​+Br−→Cl−+Br2​

C

Cl2+2K+→2KCl\mathrm{Cl_{2} + 2K^{+} \rightarrow 2KCl}Cl2​+2K+→2KCl

D

Cl2+2Br−→2Cl−+Br2\mathrm{Cl_{2} + 2Br^{-} \rightarrow 2Cl^{-} + Br_{2}}Cl2​+2Br−→2Cl−+Br2​

Markscheme

4.1 Predicting chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Predicting chemical reactions

60 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.

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