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Which of the following tests can be used to identify the presence of carbonate ions (CO₃²⁻) in a solution?.
- A.A. Add dilute hydrochloric acid and observe effervescence
- B.B. Add barium chloride solution and look for a white precipitate
- C.C. Add silver nitrate solution and check for a cream precipitate
- D.D. Add lead(II) nitrate solution and observe a yellow precipitate
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