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Select the correct statement (s) for the...

Select the correct statement (s) for the coordination compound
`K_(2)[Cr(NO^(+))(NH_(3))(CN)_(4)].`

A

Its IUPAC name is potassium amminetetracyanidonitrosoniumchromate (I).

B

Its' spin only' magnetic moment is 8 B.M.

C

Its hybridisation is `d^(2)sp^(3)`

D

It shows geometrical isomerism

Text Solution

Verified by Experts

(A,C,D)
Option (A) is correct according to IUPAC nomenclature. Cr is in +1 oxidation state and `CN^(-)` is strong field ligand. So,

One electron is unpaired in 3d subshell, so magnetic moment `=sqrt(1(1+2))=sqrt()3B.M.`
It can exist in two geometrical isomers as given below:
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Knowledge Check

  • The correct IUPAC name of the coordination compound K_(3) [Fe(CN)_(5) NO] is

    A
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    B
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    C
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    D
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  • Select the correct statement(s) for (NH_(4))_(3)PO_(4)

    A
    Ratio of number of oxygen atoms to number of hydrogen atoms is 1:3
    B
    Ratio of number of cations to number of anions is 3:1
    C
    Ratio of number of gm-atoms of nitrogen to gm-atoms of oxygen is 3:2
    D
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  • Select the correct statement(s) regarding BF_(2)NH_(2) molecule:

    A
    FBF bond angle `lt120^(@)`
    B
    HNH bond angle `gt109^(@)28'`
    C
    HNH bond angle `lt109^(@)28'`
    D
    FBF bond angle `gt120^(@)`

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