p-Block elementsMedium
Question
HBr amd HI reduce sulphuric acid, HCl can reduce KMnO4 and HF can reduce :
Options
A.H2SO4
B.KMnO4
C.K2Cr2O7
D.None of these
Solution
Becuse F is strongest oxidising agent and so F-is weakest reducing agent so it is not reduced by any reagent.
2HBr + H2SO4 → SO2 + 2H2O + Br
2HI + H2 SO4 → SO2 + 2H2O + I2
16HCl + 2KMnO4 → 2KCl + 2MnCl2 + 8H2O + 5Cl2
2HBr + H2SO4 → SO2 + 2H2O + Br
2HI + H2 SO4 → SO2 + 2H2O + I2
16HCl + 2KMnO4 → 2KCl + 2MnCl2 + 8H2O + 5Cl2
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