Chemistry - Redox Reactions Question with Solution | TestHub

${\mathrm{Mn}}_2{\mathrm{O}}_7\mathrm{ }\mathrm{and}\mathrm{ }{\mathrm{CrO}}_2{\mathrm{Cl}}_{2.}$

${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{3-}\mathrm{ }\mathrm{and}\mathrm{ }{\left[\mathrm{Cu}{\left(\mathrm{CN}\right)}_4\right]}^{2-}.$

${\left[{\mathrm{NiCl}}_4\right]}^{2-}\mathrm{ }\mathrm{and}\mathrm{ }{\left[{\mathrm{CoCl}}_4\right]}^{2-}.$

${\left[{\mathrm{FeCl}}_4\right]}^{-}\mathrm{ }\mathrm{and}\mathrm{ }{\mathrm{Co}}_2{\mathrm{O}}_{3.}$