MCQ
$Cr^{+2}$ has a magnetic moment same as that of
- ✓$Fe^{+2}$
- B$Cu^{+2}$
- C$Co^{+2}$
- D$Cu^+$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

What is relationship between $'\,B\,'$ and $'\,E\,'$ ?