Reactions of the halide ions with concentrated sulphuric acid
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5 Terms
1
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acid base reaction trend
NaX (s) + H2SO4 (l) - NaHSO4 (aq) + HX (g)
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redox reaction trend
2HX (g) + H2SO4 (l) - X2 (g) + SO2 (g) + 2H2O (l)
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Iodine further redox reaction
6HI (g) + H2SO4 (l) - 3I2 (g) + S (s) + 4H2O (l)
8HI (g) + H2SO4 (l) - 4I2 (g) + H2S (g) + 4H2O (l)
4
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Bromine redox reaction identification
orange/brown gas
5
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Iodine redox reaction identification
SO2 - purple gas
S - yellow solid or powder
H2S - rotten gas smell
Note 
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