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In the following equation what is the ch...

In the following equation what is the change in the oxidation number of manganese ?
`2MnO_4^(-) + 16H^+ +5C_2O_4^(2-) rarr 2Mn^(2+) + 8H_2O + 10CO_2`

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MBD PUBLICATION-REDOX REACTIONS-QUESTION BANK
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