JEE Main 202225 Jul, Morning shiftChemistryMediumd- and f-Block Elements158× since 2002
Among Co³⁺, Ti²⁺, V²⁺ and Cr²⁺ ions, one if used as a reagent cannot liberate H₂ from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ___________ B.M. (Nearest integer)