The oxide that shows magnetic property is :

Question:

The oxide that shows magnetic property is :

  1. $\mathrm{SiO}_{2}$

  2. $\mathrm{Mn}_{3} \mathrm{O}_{4}$

  3. $\mathrm{Na}_{2} \mathrm{O}$

  4. $\mathrm{Mg} \mathrm{O}$


Correct Option: , 2

Solution:

$\mathrm{Mn}_{3} \mathrm{O}_{4}$ shows magnetic properties.

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