MCQ
Paramagnetic and coloured ions are :-
- A$Ce^{+4},\, Yb^{+2}$
- ✓$Gd^{+3},\, Nd^{+3}$
- C$La^{+3}, \,Lu^{+3}$
- D$Lr^{+3}, \,Lu^{+3}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(I)\, SF_4$ $(II)\, OSF_4$ $(III)\, H_2CSF_4$
