Chemistry - Complete d-block Question with Solution | TestHub

Among${\mathrm{Co}}^{3+},{\mathrm{Ti}}^{2+},{\mathrm{V}}^{2+}$and${\mathrm{Cr}}^{2+}$ions, one if used as a reagent cannot liberate${\mathrm{H}}_2$from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is _____  B.M. (Nearest integer)