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Q. The secondary valency of platinum in tetraamminedichloroplatinum $(IV)$ chloride is

KCETKCET 2012Coordination Compounds

Solution:

Secondary valency corresponds to the coordination number. The formula of the given complex is $\left[ Pt Cl _{2}\left( NH _{3}\right)_{4}\right] Cl _{2}$.

In it coordination number of $Pt =2+4=6$

$\therefore $ Secondary valency of $Pt =6$.