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NEET Chemistry d and f Block Elements 2025 NEET 2025

NEET Chemistry Question (2025) — Solution

Question

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

Options

  1. A. Both Statements I and Statement II are true
  2. B. Both Statement I and Statements II are false
  3. C. Statement I is true but Statement II is false
  4. D. Statement I is false bt Statements II is true

Answer

C. Statement I is true but Statement II is false

Step-by-step solution

Ferromagnetism > Paramagnetism Statement-I is true Cr ^ +2 =3 ~d ^4 4 unpaired electrons Nd ^ +3 =4 f ^3 3 unpaired electrons Statement-II is false.

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