Test: Magnetic Properties of Solids (Old NCERT) - NEET MCQ

Paramagnetic materials have a small, positive susceptibility to magnetic fields. These materials are slightly attracted by a magnetic field and the material does not retain the magnetic properties when the external field is removed. Paramagnetic properties are due to the presence of some unpaired electrons, and from the realignment of the electron paths caused by the external magnetic field.

At 850K, Fe₃O₄ becomes paramagnetic

MnO₂ is antiferromagnetic in nature.

A ferrimagnetic material is defined as one in which the magnetic dipole of the atoms on different sublattices are opposed as in antiferromagnetism but in ferrimagnetic materials, opposing moments are unequal and a spontaneous net magnetization remains.

In ferromagnetic materials, When a magnetizing force is applied, the domains become aligned to produce a strong magnetic field within the part. So, its correct match is (iii).
A ferrimagnetic material is defined as one in which the magnetic dipole of the atoms on different sublattices are opposed as in antiferromagnetism but in ferrimagnetic materials, opposing moments are unequal and a spontaneous net magnetization remains. So, its correct match is (i)
These are materials in which electron spins associated with magnetic atoms at particular crystallographic sites are ordered yet oriented with respect to each other in such a manner that their net magnetization is equal to zero. So, its correct match is (ii).
Diamagnetic materials are those in which the electron motions are such that they produce net zero magnetic moment in the absence of any magnetic field. Typically these are atoms with closed or filled outer electron shells. So, its correct match is (iv).
Paramagnetic materials possess a permanent magnetic dipole moment due to incomplete cancellation of electron spin and orbital magnetic moment. So, its correct match is (v).