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Question- Iron(II) in aqueous solution can be quantities by anoxidation- reduction process using dichromate,Cr2O72-

Cr2O72-(aq) + 6Fe2+(aq) +14 H+(aq) ? 2Cr3+ (aq) + 6Fe3+(aq) +7H2O

Write the balanced half reactions for the oxidation of Iron (II)and the reduction of dichromate,

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