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Oxidation number examples

In the following examples worked out the oxidation number of the element marked in blue:

H3PO4

HSO4-

N2

NH4+

F2O

Na2S4O6

H2O2

KH

VO2+

ICl

NaHCO3

UF6

KAuO2

K4Fe(CN)6

NH4VO3

Cr2O72-

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