$(b)$ $CoCl _{3} \cdot 5 NH _{3}$
$(c)$ $CoCl _{3} \cdot 6 NH _{3}$ અને
$(d)$ $CoCl \left( NO _{3}\right)_{2} \cdot 5 NH _{3}$
ઉપરમાંથી સંકિર્ણોની સંખ્યા કે જે સીસ-ટ્રાન્સ સ્વરૂપમાં અસ્તિત્વ ધરાવે છે તે..........છે.
Can exhibit $G.I.$
$(b)$ $CoCl _{3} \cdot 5 NH _{3}=\left[ Co \left( NH _{3}\right)_{5} Cl \right] Cl _{2}$
Can't exhibit $G.I.$
$(c)$ $CoCl _{3} \cdot 6 NH _{3}=\left[ Co \left( NH _{3}\right)_{6}\right] Cl _{3}$
Can't exhibit $G.I.$
$(d)$ $CoCl \left( NO _{3}\right)_{2} \cdot 5 NH _{3}=\left[ Co \left( NH _{3}\right)_{5} Cl \right]\left( NO _{3}\right)_{2}$
OR
$=\left[ Co \left( NH _{3}\right)_{5}\left( NO _{3}\right)\right] Cl \left( NO _{3}\right)$
Both can't exhibit $G.I.$
$(I)\, [Ni(CN)_4]^{2-}\,\,\,(II)\, [NiCl_4]^{2-}\,\,\,(III)\,Ni(CO_4)\,\,\,$
$(IV)\, [Ni(H_2O)_6 ]^{2+}$