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The primary valence of the metal ion in ...

The primary valence of the metal ion in the coordination compound `K_2[Ni(CN)_4]` is

A

(a) Four

B

(b) Zero

C

(c) Two

D

(d) Six

Text Solution

Verified by Experts

The correct Answer is:
C
Primary valencies are also known as oxidation state.
`K_2[Ni(CN)_4], 2+x-4=0impliesx=+2`
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Consider the coordination compound, [Co(NH_(3))_(5)SO_(4)]Br (i) Write IUPAC name of the above coordination compound (ii) What is the primary valence and secondary valence of the central metal, cobalt, in the above coordination compound? (iii) Which type of structural isomerism is exhibited by the above coordination compound ?

(a) Determine the denticity of the ligands in complexes [Fe(C_(2)O_(4))_(3)]^(3-) and [Pt(en)_(2)]^(2+) . What are the coordination number and the oxidation number of the central metal ion ? (b) Designate the coordination entities and counter ions in the coordination compounds. K_(2)[Ni(CN)_(4)],[Cr(en)_(3)]Cl_(3),F_(4)[Fe(CN)_(6)]_(3),[PtCl_(2)(en)_(2)](NO_(3))_(2) . ( c) Identify the Lewis acid and Lewis base components of the following complexes. (i)[HgBr_(4)]^(2-)" " (i) [Ni(H_(2)O)_(6)]^(2+)" " (iii) [PdCl_(2)(NH_(3))_(2)] (iv) [Al(OH)_(4)]^(-)" "(v) [Ag(CN)_(2)]^(-) " " (vi) [Cr(CO)_(6)]

Knowledge Check

  • The primary valency of the metal ion in the co-ordination compound, K_2[Ni(CN)_4] is

    A
    Four
    B
    Zero
    C
    Two
    D
    Six

  • The primary valence of the metal ion in the co-ordination compound Na_2[Co(CN)_4] is _________.

    A
    four
    B
    zero
    C
    two
    D
    six

  • The primary valency of the metal ion is satisfied by

    A
    neutral molecules
    B
    positive ions
    C
    negative ions
    D
    all the above

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    The primary valency of iron in K_4[Fe(CN)_6] is

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

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