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2. NaCl + H2SO4 ->

  • NaHSO4 + HCl
  • Cl2 + SO2 + 2H2O
  • H2S + Cl + SO2

3. What do you see when NaBr reacts with H2SO4

  • 1st reaction gives misty fumes. 2nd reaction - choking SO2 fumes and orange fumes of Br2
  • 1st reaction misty fumes, 2nd reaction orange solid
  • white ppt
  • solid bromine, misty fumes

4. NaI + H2SO4 ->

  • NaHSO4 + HI ... 6HI + SO2 -> H2S + 3I2 + 2H2O
  • NaHSO4 + HI ... 2HI + H2SO4 -> I2 + SO2 + 2H2O ... 6HI + SO2 -> H2S + 3I2 + 2H2O
  • NaHSO4 + HI ... 2HI + H2SO4 -> I2 + SO2 + 2H2O

5. What do you see when HCl is formed?

  • nothing
  • misty fumes
  • white precipitate
  • orange fumes
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