Halide reactions and predicting halogen chemistry Quiz
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5 questions, one answer each
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1. Which observation is made when solid NaI is warmed with concentrated sulfuric acid?
- A. Steamy white fumes only
- B. Orange-brown fumes only
- C. Purple fumes and a smell of rotten eggs
- D. A pale yellow gas
2. What is formed when silver nitrate is added to bromide ions?
- A. A white precipitate
- B. A cream precipitate
- C. A yellow precipitate
- D. No precipitate
3. Why does NaCl not give chlorine with concentrated H₂SO₄?
- A. Chloride is a weaker reducing agent than bromide and iodide
- B. Chloride is a stronger reducing agent
- C. Concentrated H₂SO₄ is not an oxidising agent
- D. NaCl is insoluble
4. Which statement about astatine and its compounds is a sensible prediction?
- A. Astatine is a pale yellow gas
- B. Silver astatide dissolves in dilute ammonia
- C. Astatide is a stronger reducing agent than iodide
- D. HAt is more stable than HF
5. A white precipitate forms with acidified AgNO₃ and dissolves in dilute ammonia. The ion is:
- A. Cl⁻
- B. Br⁻
- C. I⁻
- D. F⁻