What happens when sulphur dioxide reacts with acidified potassium iodide solution?
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Sulphur dioxide gas changes acidifed Potassium Dichromate solution from orange to green.
Chemical reaction:
Sulphur dioxide reacts with acidified potassium Dichromate solution to give Chromium Sulphate , Poatssium sulphate and water.
3SO2(g) + K2Cr2O7(aq) +H2SO4(aq) ---------> Cr2(SO4)3 (aq) + K2SO4 (aq) +H2O(l)
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