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Halogens are good ——— agents?
oxidising
Halides are good ——— agents?
reducing
Reducing power ——— down group 7?
Increases
NaI + H2SO4
NaHSO4 + HI
2HI + H2SO4
I2 + SO2 + 2H2O
6HI + SO2
H2S + 3I2 + 2H2O
Reducing agents ———— electrons
lose
Chlorine + cold water
ClO- + Cl- + 2H+
Chlorine + cold dilute sodium hydroxide
NaClO + NaCl + H2O
Chlorine + hot conc. alkali
NaClO3+ 5NaCl + 3H2O
Test for sulfate ions
Add Barium chloride
Note
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