Which one among the following metals is not a ferromagnetic material?

Which one among the following metals is not a ferromagnetic material?

Cobalt
Silver
Iron
Nickel
This question was previously asked in
UPSC CISF-AC-EXE – 2024
The correct answer is B) Silver.
Ferromagnetic materials are substances that are strongly attracted by a magnetic field and can be permanently magnetized. Common examples include Iron (Fe), Cobalt (Co), and Nickel (Ni). Silver (Ag) is a diamagnetic material, meaning it is weakly repelled by a magnetic field.
Materials can be classified based on their magnetic properties as diamagnetic, paramagnetic, or ferromagnetic. Diamagnetic materials have paired electrons and oppose external magnetic fields. Paramagnetic materials have unpaired electrons and are weakly attracted to magnetic fields. Ferromagnetic materials exhibit a strong attraction to magnetic fields due to the alignment of magnetic domains.