23. Based on the degree of oxidation of chromium, iodin

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23. Based on the degree of oxidation of chromium, iodine and sulfur compounds K2Cr2O7, KI and H2SO3, define; Which of these is only an oxidant only reducing agent and which may exhibit both oxidising and reducing properties. Why is that? On the basis of of electronic of equations arrange the the coefficients in the reaction equation,-reaching according to the scheme:
NaCrO2 + PbO2 + NaOH → Na2CrO4 + Na2PbO2 + H2O

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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