Multiple choice

Which of the following sets represents ferromagnetic elements/molecules only?

  1. MnS, NiO, Fe, Co

  2. Fe, Co, MnO, MnS

  3. MnS, NiO, Co, Ni

  4. Fe, Co, Ni, CrO2

  5. Cr, MnO, MnS, NiO

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fe, Co, Ni and CrO2 all are ferromagnetic elements/molecules.