The number of ions produced in an aqueous solution by the compound $[Co(NH_3)_4Cl_2]Cl$ is ..........

What fraction of chlorine can be precipitated by $AgNO_3$ solution from $[Co(NH_3)_5Cl]Cl_2$?

The coordination number of a central metal atom in a complex is determined by:

On the basis of the following observations made with aqueous solutions,assign secondary valences to metals in the following compounds:

Formula	Moles of $AgCl$ precipitated per mole of the compound with excess $AgNO_3$
$(i) PdCl_2 \cdot 4NH_3$	$2$
$(ii) NiCl_2 \cdot 6H_2O$	$2$
$(iii) PtCl_4 \cdot 2HCl$	$0$
$(iv) CoCl_3 \cdot 4NH_3$	$1$
$(v) PtCl_2 \cdot 2NH_3$	$0$

Sodium thiosulphate is used to remove the unexposed $AgBr$ from photographic films by forming a complex. In this complex of silver,the coordination number of silver is

The following reaction is performed for detection of $NO_2^{-}$: $FeSO_4 + NO \rightarrow$ Product. Choose the correct statement.