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Topic: Colour, catalytic and magnetic properties, complexes, interstitial compounds, alloys· d- and f-Block Elements

Given below are two statements :Statement I : Ferromagnetism is considered as an extreme form of paramagnetism.Statement II : The number of unpaired electrons in a Cr^2+ ion (Z = 24) is the same as that of a Nd^3+ ion (Z = 60).In the light of the abo…

Given below are two statements :

Statement I : Ferromagnetism is considered as an extreme form of paramagnetism.

Statement II : The number of unpaired electrons in a \(\mathrm{Cr^{2+}}\) ion (\(Z = 24\)) is the same as that of a \(\mathrm{Nd^{3+}}\) ion (\(Z = 60\)).

In the light of the above statements, choose the correct answer from the options given below :

1. Both Statement I and Statement II are true

2. Both Statement I and Statement II are false

3. Statement I is true but Statement II is false

4. Statement I is false but Statement II is true

1 answer

Best answer

Answer: 3. Statement I is true but Statement II is false

  • Statement I is true: ferromagnetism is the extreme form of paramagnetism (domains align spontaneously).
  • Statement II is false: \(\mathrm{Cr^{2+}}\) is \(3d^4\) with 4 unpaired electrons; \(\mathrm{Nd^{3+}}\) is \(4f^3\) with 3 unpaired electrons.

Option (3).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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