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What is actipn of acidified potassium dichromate on so2? |
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Answer» dioxide gas (SO2) is BUBBLED through acidified potassium dichromate (K2Cr2O7/H+). The orange SOLUTION TURNS green. Colour changes: K+ in K2Cr207 is a colourless ion, and dichromate (Cr2O72-) is an orange solution. SO2 is a colourless gas, so the INTIAL solution is orange |
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