Chemistry · Oct / Nov 2020 · Paper 12 · Question 22
5070Reversible reactions and equilibrium
When water is liquid, it ionises slightly. H2O(l) ⇌ H+(aq) + OH–(aq) The forward reaction is endothermic. When the temperature of water is increased, which changes take place? 1 The water becomes acidic. 2 The water becomes alkaline. 3 More water molecules form ions.
- A1 and 3
- B1 only
- C2 and 3
- D3 only
As printed in the paper
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Correct answer: D. 3 only
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