Question

Compare paramagnetism and ferromagnetism.

Answer 1

Paramagnetism	Ferromagnetism
1. The substances, which are attracted by the external magnetic field are known as paramagnetic substances and this property is known as paramagnetism.	1. The substances which have permanent magnetism even in the absence of magnetic field are called ferromagnetic substances and this property is known as ferromagnetism.
2. Paramagnetism exhibited by those substances which have impaired electrons.	2. Ferromagnetism exhibited by those substances which have domains.
3. Example: O2, Cu2+, Fe3+	3. Example: Fe, Co, Ni