JEE Main 20254 Apr, Morning shiftChemistryEasyd- and f-Block Elements158× since 2002Pair of transition metal ions having the same number of unpaired electrons isAOption A. Ti2+\mathrm{Ti^{2+}}Ti2+, Co2+\mathrm{Co^{2+}}Co2+BOption B. Ti3+\mathrm{Ti^{3+}}Ti3+, Mn2+\mathrm{Mn^{2+}}Mn2+COption C. V2+\mathrm{V^{2+}}V2+, Co2+\mathrm{Co^{2+}}Co2+DOption D. Fe3+\mathrm{Fe^{3+}}Fe3+, Cr2+\mathrm{Cr^{2+}}Cr2+CheckSkip · show solution