Coordination CompoundHard
Question
CoCl3.4H2O is an anhydrous binary solute hence its Werner′s representation is :
Options
A.

B.

C.

D.none
Solution
Anhydrous binary compound will have all water molecules in coordination sphere so its formula will be [Co(H2O)4Cl2]Cl. Two Cl- will have dual behaviour i.e. they will act as primary valency as well as the secondary valency and third Cl- will satisfy only primary valency.
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