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Chemistry · May / June 2022 · Paper 11 · Question 27

5070Preparation of salts

Which method should be used to make a pure sample of potassium chloride?

  1. Aadding AgCl(s) to KNO₃(aq)
  2. Badding excess K₂CO₃(s) to HCl(aq)
  3. Cmixing KNO₃(aq) with NaCl(aq)
  4. Dtitrating KOH(aq) with HCl(aq)

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Correct answer: D. titrating KOH(aq) with HCl(aq)

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