Chemistry - Complete d-block Question with Solution | TestHub

${\text{Co}}^{3+}<{\text{Fe}}^{3+}<{\text{Cr}}^{3+}<{\text{Sc}}^{3+}:$Stability in aqueous solution

$\text{ Sc < Ti < Cr < Mn :}$Number of oxidation states

${\text{V}}^{2+}<{\text{Cr}}^{2+}<{\text{Mn}}^{2+}<{\text{Fe}}^{2+}:$Paramagnetic behaviour

​${\text{Ni}}^{2+}<{\text{Co}}^{2+}<{\text{Fe}}^{2+}<{\text{Mn}}^{2+}:$Ionic size