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The average oxidation number of I in KI(...

The average oxidation number of `I` in `KI_(3), Fe` in `Fe_(3)O_(4)` are respectively:

A

`-1//3, +8//3`

B

`-1, +8`

C

`0,+3`

D

`0,+2`

Text Solution

Verified by Experts

The correct Answer is:
A
Average oxidation no. of `I` in `Kl_(3)`
or `overset(-1)(KI)+overset(0)I_(2)=((-1xx1)+2xx0)/(3)=(-1)/(3)`
Average oxidation no. of `Fe` in `Fe_(3)O_(4)`
or `Fe_(2)overset(+)O_(3).Feoverset(+2)O=((+3xx2)+(+1xx1))/(3)=(+8)/(3)`
Average ox.no. `=(SigmaOx."No".xx"No.of atoms")/("No.of atoms")`
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Knowledge Check

  • Fe_(3)O_(4) is:

    A
    Ferromagnetic
    B
    Diamagnetic
    C
    Paramagnetic
    D
    Ferrimagnetic

  • The oxidation number of Fe in K_(3)[Fe(C_(2)O_(4))_(3)] is

    A
    1
    B
    2
    C
    3
    D
    4

  • Oxidation number of Fe in Fe_(3)O_(4) is

    A
    `+2`
    B
    `+3`
    C
    `(8)/(3)`
    D
    `(2)/(3)`

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