The Solid State

The Solid State

Question

Which of the following compounds is metallic and ferromagnetic?

  • VO2

  • MnO2

  • TiO2

  • CrO2

Answer

D.

CrO2

Only three elements iron (Fe) cobalt (Co) and Nickel (Ni) show ferromagnetism at room temperature. CrO2 is also a metallic and ferromagnetic compound which  is used to make magnetic tapes for cassette recorders

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