The effective atomic number of Hg(At. No. 80) in the complex K 2 [ H g I 4 ] is Options: A . &nbsp 86 B . &nbsp 84 C . &nbsp 82 D . &nbsp 88

The effective atomic number of Hg(At. No. 80) in the complex K2[HgI4] is

Question -

The effective atomic number of Hg(At. No. 80) in the complex $K_{2} [H g I_{4}]$ is

Options:

A . 86

B . 84

C . 82

D . 88

Answer: Option A
:
A
The complex ion is

[H g I_{4}]^{2 -}

and the metal ion is

H g^{2 +}

∴

E.A.N = 80 - 2 + 4(2) = 86.

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