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Calculate oxidation number of : (i) ...

Calculate oxidation number of :
(i) Cr in `Cr_(2)O_(4)^(2-)`
(ii) O in `Ko_(2) `
(iii)Na in `Na_(2) O_(2) `.

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Knowledge Check

  • The oxidation number of Cr in K_(2)Cr_(2)O_(7) is

    A
    `-2`
    B
    `-7`
    C
    `+2`
    D
    `+6`

  • The oxidation state of Cr in Cr_(2)O_(7)^(2-) is

    A
    `4`
    B
    `6`
    C
    `-6`
    D
    `-2`

  • The oxidation state of Cr in K_(2)Cr_(2)O_(7) is -

    A
    `+7`
    B
    `+6`
    C
    `+3`
    D
    `+2`
    • CBSE COMPLEMENTARY MATERIAL-REDOX REACTIONS -3-MARKS QUESTIONS
    1. Calculate oxidation number of : (i) Cr in Cr(2)O(4)^(2-) (ii) O ...

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