NEET2025Chemistry-Magnetic Properties of Elements
NEET 2025 Chemistry Ferromagnetism and Electron Configuration Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
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 Cr²⁺ ion (Z = 24) is the same as that of a Nd³⁺ ion (Z = 60).
In the light of the above statements, choose the correct answer from the options given below :
A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is true but Statement II is false
D
Statement I is false but Statement II is true
Correct Answer
Option C
Detailed Explanation
Statement I is true as ferromagnetism is indeed an extreme form of paramagnetism. Statement II is false because Cr²⁺ has 4 unpaired electrons, while Nd³⁺ has 3 unpaired electrons.
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