JEE Main 11 Jan 2019 Shift 1 Solved Paper

Usually Sc(Scandium) does not show variable oxidation states.
Most common oxidation states of :
(i) Sc : +3
(ii) V : +2, +3, +4, +5
(iii) Ti : +2, +3, +4
(iv) Cu : + 1 , + 2