Question

Match the set of on and reagent (in List I) with colour obtained (in List II).

Answer 1

The complex formed from the mixture ${Fe}^{3+}+[{Fe\left(CN\right)}_6{]}^{-4}$ is blue in colour.
${4Fe}^{3+}+3[{Fe\left(CN\right)}_6{]}^{-4}\to F{e}_4[Fe(CN{)}_6{]}_3$
The complex formed from the mixture ${Fe}^{3+}+{CNS}^{-}$ is blood red in colour.
${Fe}^{3+}+3{CNS}^{-}\to Fe(SCN{)}_3$
The complex formed from the mixture ${Ni}^{2+}+DMG$ is cherry red in colour.
${Ni}^{2+}+DMG\to \left[Ni\right(DMG{)}_2]$
The complex formed from the mixture ${CrO}_4^{2-}+{Pb}^{2+}$ has yellow ppt.
${CrO}_4^{2-}+{Pb}^{2+}\to PbCr{O}_4$
The complex formed from the mixture ${Mn}^{2+}+{PbO}_2+H^{+}$ is pink in colour.
$5Pb{O}_2+2M{n}^{2+}+4H^{+}\left(aq\right)\to 5P{b}^{2+}+2Mn{O}_4^{-}+2HOH$