Halide Ions Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. What solution is added to test for halide ions?
- A. Limewater
- B. Silver nitrate solution
- C. Barium chloride solution
- D. Sodium hydroxide solution
2. What colour precipitate forms with chloride ions?
- A. White
- B. Cream
- C. Yellow
- D. Green
3. What colour precipitate forms with iodide ions?
- A. White
- B. Cream
- C. Yellow
- D. Blue
4. Why is dilute nitric acid added before silver nitrate in the halide test?
- A. To speed up the reaction
- B. To prevent other ions from causing a false-positive precipitate
- C. To dissolve the halide ions
- D. To change the colour of the precipitate
5. A student adds dilute nitric acid then silver nitrate to an unknown solution and observes a cream precipitate. Which halide ion is present?
- A. Chloride
- B. Bromide
- C. Iodide
- D. Fluoride