Silver chloride dissolves in excess of ammonium hydroxide solution. The cation present in the resulting solution is

Silver chloride dissolves in excess of $NH_4OH$. The cation present in this solution is

Consider the following complexes:
$(a) K_2PtCl_6$
$(b) PtCl_4 \cdot 2NH_3$
$(c) PtCl_4 \cdot 3NH_3$
$(d) PtCl_4 \cdot 5NH_3$
Their electrical conductances in aqueous solutions are:

Which aqueous solution absorbs nitric oxide in an appropriate amount?

$Ni^{2+}$ ion can be estimated by using dimethyl glyoxime and forms a cherry-red precipitate. The complex is stabilized by

Among the properties $(a)$ reducing,$(b)$ oxidising,$(c)$ complexing,the set of properties shown by $CN^{-}$ ion towards metal species is