JEE Main 202125 Jul, Morning shiftChemistryMediumd- and f-Block Elements158× since 2002
The correct order of following 3d metal oxides, according to their oxidation numbers is :
(a) CrO₃, (b) Fe₂O₃, (c) MnO₂, (d) V₂O₅, (e) Cu₂O
JEE Main 2021 · 25 Jul, Morning shift · Q768