Inert gases exhibit _______.

  1. Paramagnetism
  2. Diamagnetism
  3. Ferromagnetism
  4. Anti-ferromagnetism

Answer (Detailed Solution Below)

Option 2 : Diamagnetism
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Detailed Solution

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Different magnetic materials and their properties are shown in the Table:

Type

Behaviour

Example

Diamagnetism

  • Atoms have no magnetic moment
  • Susceptibility is small and negative

Inert gases

Many metals Au. Cu, Hg

Non-metals such as B, Si, P

Paramagnetism

  • Atoms have randomly oriented magnetic moment
  • Susceptibility is small and positive

Some metals such as Al

Some diatomic gases O2, NO

Ions of transition metals and rare earth metals

Ferromagnetism

  • Atoms have parallel aligned magnetic moment
  • Susceptibility is large

Transition metals Fe, Co, Ni

Alloys of Mn

Antiferromagnetism

  • Atoms have an anti-parallel aligned magnetic moment
  • Susceptibility is small and positive

Transition metals Mn, Cr and many of their compounds

Ferrimagnetism

  • Atoms have mixed parallel and anti-parallel aligned magnetic moment
  • Susceptibility is large

Fe3O4 (Magnetite)

γ-Fe2O3

mixed oxides of iron and other elements such as Sr Ferrite

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