CoCl3.4NH3, respectively, is what is secondary valency in this case

A complex compound consist of 2 valencies i.e. primary valency and secondary valency. Out of which primary valency which is satisfied by a species present outside the coordination sphere is ionisable and the secondary valency satisfied by ligands are unionisable. 
The structure of CoCl3.4NH3 is [Co(NH3)4Cl2]Cl, which on dissociation produces 1 chloride ions
[Co(NH3)4Cl2]Cl ------> ‚Äč[Co(NH3)4Cl2]+ + Cl 
Hence its secondary valency is 6.


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