Given the molecular formulas of the hexa-coor | vedclass

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(B) The complexes can be written in the form of coordination entities as follows:$(a)$ $[Co(NH_3)_6]Cl_3$$(b)$ $[Co(NH_3)_5Cl]Cl_2$$(c)$ $[Co(NH_3)_4C

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$3, 2, 1$

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(B) The complexes can be written in the form of coordination entities as follows:$(a)$ $[Co(NH_3)_6]Cl_3$$(b)$ $[Co(NH_3)_5Cl]Cl_2$$(c)$ $[Co(NH_3)_4Cl_2]Cl$Primary valency corresponds to the oxidation state of the central metal atom,which is balanced by the ionizable chloride ions outside the coordination sphere.In $(a)$,there are $3$ $Cl^-$ ions,so primary valency is $3$.In $(b)$,there are $2$ $Cl^-$ ions,so primary valency is $2$.In $(c)$,there is $1$ $Cl^-$ ion,so primary valency is $1$.Thus,the primary valencies are $3, 2, 1$.

Given the molecular formulas of the hexa-coordinated complexes: $(a)$ $CoCl_3 \cdot 6NH_3$,$(b)$ $CoCl_3 \cdot 5NH_3$,$(c)$ $CoCl_3 \cdot 4NH_3$. If the number of coordinated $NH_3$ molecules in $(a)$,$(b)$,and $(c)$ are $6, 5$,and $4$ respectively,the primary valencies in $(a)$,$(b)$,and $(c)$ are:

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