Chemistry · Oct / Nov 2018 · Paper 11 · Question 21
Insoluble salts are prepared by reacting aqueous solutions of soluble salts. A precipitate forms. Which pairs of aqueous solutions form a precipitate? 1 barium chloride and nitric acid 2 barium chloride and sulfuric acid 3 barium nitrate and nitric acid 4 barium nitrate and sulfuric acid
- A1 and 2
- B1 and 3
- C2 and 4
- D3 and 4
As printed in the paper
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Correct answer: C. 2 and 4
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