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Reversible reactions and equilibria

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Question 11

When chloride ions are added to a pink solution containing cobalt ions, the mixture turns blue.

This is a reversible reaction.

pink solution+chloride ions⇌blue solution+water \text{pink solution} + \text{chloride ions} \rightleftharpoons \text{blue solution} + \text{water} pink solution+chloride ions⇌blue solution+water

What effect does the removal of chloride ions have on the colour of the blue mixture?

turns pink

turns darker blue

turns colourless

does not change colour

Reversible reactions and equilibria Questions

  1. GCSE
  2. /Chemistry
  3. /Reversible reactions and equilibria

Practise Edexcel GCSE Chemistry Reversible reactions and equilibria with exam-style questions for Foundation and Higher tier. 38 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank