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4.1 Predicting chemical reactions

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Question 13

A student places a clean strip of silver in copper(II) sulfate solution. No reaction is seen.

Which explanation is correct?

[1]
A

Silver and copper are both transition metals, so neither metal can displace the other.

B

Silver atoms already have a full outer shell, so they cannot lose electrons to form positive ions.

C

The change would require silver atoms to form positive ions, but they do this less readily than copper atoms.

D

The blue colour of the solution hides the change, so a reaction does happen but cannot be seen.

Markscheme

4.1 Predicting chemical reactions Questions

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

113 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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