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  4. What is the secondary valence of following compounds PtCl 2 ⋅ 2 NH 3, CoCl 3 ⋅ 4 NH 3 and NiCl 2 ⋅ 6 H 2 O if moles of AgCl precipitated per mole of the given compounds with excess AgNO 3 respectively are: 0,1 and 2

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Q. What is the secondary valence of following compounds $PtCl _2 \cdot 2 NH _3, CoCl _3 \cdot 4 NH _3$ and $NiCl _2 \cdot 6 H _2 O$ if moles of $AgCl$ precipitated per mole of the given compounds with excess $AgNO _3$ respectively are: $0,1$ and $2$

Coordination Compounds

Solution:

$PtCl _2 \cdot 2 NH _3=\left[ Pt \left( NH _3\right)_2 Cl _2\right]$
$CoCl _3 \cdot 4 NH _3=\left[ Co \left( NH _3\right)_4 Cl _2\right] Cl$
$NiCl _2 \cdot 6 H _2 O =\left[ Ni \left( H _2 O \right)_6 Cl _2\right.$