When so2 is passed in acidified k2cr2o7 solution?
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Answer:
when sulphur dioxide is passed through an acidified K2Cr207 solution,the oxidation state of sulphur changes to (3)+4to+6.
Explanation:
for occurrence oxidation,the oxidation of reduction is also important (Cr204)-2 {valency is -2} is used as K2Cr207
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