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Assertion:Substances like Fe3O4 and MgFe...

Assertion:Substances like `Fe_3O_4` and `MgFe_2O_4` lose ferrimagnetism on heating and become paramagnetic
Reason : Magnetic moments of the domains in these substances are aligned in parallel and antiparallel directions in unequal numbers.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
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