MCQ
Which of the following is ferromagnetic
- A$Cr$
- B$Mn$
- C$W$
- ✓$Co$
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(At. No. $Ti = 22, Cr = 24, Co = 27, Zn = 30$)
(At. Nos. $Mn = 25, Cr = 24, V = 23, Ti = 22$ )
