What is the difference between anti-ferromagnetic and ferrimagnetic substances ? What is the cause of this difference ?

What is the difference between anti-ferromagnetic and ferrimagnetic su

1.	What is the difference between anti-ferromagnetic and ferrimagnetic substances ? What is the cause of this difference ?
Answer» Solution :Anti-ferromagnetic substances possess zero net magnetic MOMENT but FERRIMAGNETIC possess small net magnetic moment but not zero . This is because the former contain equal number of electrons with opposite spin but the LATTER have UNEQUAL number.