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- Engineering
- Confused! kindly explain, Which of the following compounds is metallic and ferromagnetic ?
- #States of matter
- #Engineering
- #Chemistry
- #Joint Entrance Examination Main
- #All India Pre Medical Test
Which of the following compounds is metallic and ferromagnetic ?
- Option 1)
TiO2
- Option 2)
CrO2
- Option 3)
VO2
- Option 4)
MnO2
Answers (1)
As in CrO2,Cr is in +4 oxidation state,So after getting paired no free spin is occured.but in MnO2 after +2 oxidation it has a free electron spin which is responsible for paramagnetism.
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