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The metal ion in complex underline(A ...

The metal ion in complex `underline(A ) ` has EAN identical to the atomic number of krypton . `underline (A) ` is
( Atomic no. Of `Cr =24,Fe=26 ,pd =46) `

A

`[Pd(NH_3)_6]Cl_4`

B

`[Cr(NH_3)_5Cl]SO_4`

C

`Na_4[Fe(CN)_6]`

D

`K_3[Fe(CN)_6]`

Text Solution

Verified by Experts

The correct Answer is:
C
Atomic number of krypton = 36 Effective atomic number (EAN) = atomic number of the metal – number of electrons lost in ion formation + number of electrons gained from the donor atoms of the ligands.
EAN of `Na_4 [Fe(CN)_6] = 26-2+12 = 36.`
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