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In which of the following ionic radii of...

In which of the following ionic radii of chromium would

A

`K_(2)CrO_(4)`

B

`CrO_(2)`

C

`CrC1_(2)`

D

`CrF_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Oxidation number os Cr in option `a,b,c` and `d` are `+ 6 , + 4, + 3, +3` respectively.
In given options `(a)` has high oxidation number therefore its radii will be blow. Atomic radii decreases with increase in oxidation no.
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Knowledge Check

  • In which of the following compounds the radius of chromium ion is smallest?

    A
    `K_2CrO_4`
    B
    `CrO_2`
    C
    `CrF_3`
    D
    `CrCl_3`

  • For which of the following ionic species radius would be maximum?

    A
    `C^(4-)`
    B
    `N^(3-)`
    C
    `O^(2-)`
    D
    `Mg^(2+)`

  • Ionic radii are

    A
    Greater than the respective atomic radii of elements in general
    B
    Greater than the respective atomic radii of electropositive elements
    C
    Greater than the respective atomic radii of electronegative elements
    D
    Less than the respective atomic radii of electronegative elements