Paramagnetic substances are attracted to an external magnetic field, such as oxygen and gadolinium. Diamagnetic substances are repelled by a magnetic field, including water, mercury, copper, carbon and bismuth. Ferromagnetic substances can be magnetized by an external magnetic field and remain magnetized after the field is removed.

3. 1. Paramagnetic : They are attracted by externally
applied magnetic field. E.g. oxygen, melanin,
gadolinium
2. Diamagnetic : They are repelled by magnetic field.
E.g. water, Hg, Cu, C, Bi
3. Ferromagnetic : They can be magnetized by an
external magnetic field and remain magnetized after
the magnetic field is removed.

4. Ferromagnetic substances