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The oxidation number of Co in the comple...

The oxidation number of `Co` in the complex ion

A

`+2`

B

`+3`

C

`+4`

D

`+6`

Text Solution

Verified by Experts

The correct Answer is:
B
`2(x) + 1(-2) + 1(-1) = +3`
`:. X = +3` i.e. Co O.S. is +3
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Knowledge Check

  • The oxidation numbe of Co in the complex ion is :

    A
    `+2`
    B
    `+3`
    C
    `+4`
    D
    `+6`

  • The co-ordination number of Cr in the complex ion [Cr(H_2O)_6]^(3+) is -

    A
    Zero
    B
    3
    C
    6
    D
    None of these

  • When tin(IV) chloride is treated with excess of conc., hydrochloric acid, the complex ion (SnCl_(6))^(2-) is formed. The oxidation state of tin in this complex ion is:

    A
    `+4`
    B
    zero
    C
    `-2`
    D
    `-4`

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