What is the oxidation state of osmium (Os) in OsO4? from Chemis
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    Redox Reactions

    Multiple Choice QuestionsShort Answer Type

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    27.

    What is the oxidation state of osmium (Os) in OsO4?

    Let the oxidation state of Os= x
    Oxidation state of O = -2
    Therefore,
    The oxidation state of osmium (Os) in OsO4.

    x +(-2) x4 =0
    x-8=0
    x=8

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    28. What is the oxidation number of cobalt in K|Co(CO)4| ?
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    29. Define oxidation and reduction in terms of oxidation number.
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    30.

    Define redox reaction in terms of oxidation number.

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