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7.1 Group 1

7.1 Group 1

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Question 7
H

Which is the ionic equation for the reaction of potassium with water?

[1]
A

2K+2H2O→2KOH+H2\mathrm{2K + 2H_{2}O \rightarrow 2KOH + H_{2}}2K+2H2​O→2KOH+H2​

B

K+H2O→K++OH−+H2\mathrm{K + H_{2}O \rightarrow K^{+} + OH^{-} + H_{2}}K+H2​O→K++OH−+H2​

C

2K+2H2O→2K++2OH−+H2\mathrm{2K + 2H_{2}O \rightarrow 2K^{+} + 2OH^{-} + H_{2}}2K+2H2​O→2K++2OH−+H2​

D

2K+2H+→2K++H2\mathrm{2K + 2H^{+} \rightarrow 2K^{+} + H_{2}}2K+2H+→2K++H2​

Markscheme

7.1 Group 1 Questions

  1. GCSE
  2. /Chemistry
  3. /7.1 Group 1

75 exam-style questions on Edexcel GCSE Chemistry 7.1 Group 1, covering 7.1.1 Classifying elements by group in the periodic table and 7.1.2 Properties and reactions of the alkali metals. Each one has a worked solution and a mark scheme showing where the marks go.

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