How many of the following compounds show ferr | vedclass

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(C) In ferrimagnetic substances, the magnetic moments of the domains are aligned in parallel and antiparallel directions in unequal numbers.The net ma

Vedclass · Accepted Answer

$3$

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(C) In ferrimagnetic substances, the magnetic moments of the domains are aligned in parallel and antiparallel directions in unequal numbers.The net magnetic moment is non-zero but small.These substances are weakly attracted by a magnetic field compared to ferromagnetic substances and lose their ferrimagnetism on heating, becoming paramagnetic.Examples include $Fe_3O_4$ (magnetite) and ferrites like $MgFe_2O_4$ and $NiFe_2O_4$.Among the given compounds:$1$. $Fe_3O_4$: Ferrimagnetic$2$. $MgFe_2O_4$: Ferrimagnetic$3$. $NiFe_2O_4$: Ferrimagnetic$4$. $MnO$: Antiferromagnetic$5$. $CrO_2$: FerromagneticThus, there are $3$ compounds that show ferrimagnetism.Therefore, option $C$ is the correct answer.

How many of the following compounds show ferrimagnetism?
$Fe_3O_4; MgFe_2O_4; NiFe_2O_4; MnO; CrO_2$

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How many of the following compounds show ferrimagnetism?$Fe_3O_4; MgFe_2O_4; NiFe_2O_4; MnO; CrO_2$