Chemistry-Crystal Field Theory
NEET Chemistry Crystal Field Theory Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
Assertion (A): Crystal field splitting energy is larger for complexes with strong field ligands compared to those with weak field ligands.
Reason (R): Ligands are point charges and anionic ligands exert the greatest splitting effect.
A
Both (A) and (R) are true and (R) is the correct explanation of (A).
B
Both (A) and (R) are true but (R) is not the correct explanation of (A).
C
(A) is true but (R) is false.
D
(A) is false but (R) is true.
Correct Answer
Option C
Detailed Explanation
Crystal field splitting energy depends on the field strength of ligands, with strong field ligands causing larger splitting. However, (R) is incorrect as anionic ligands are found at the low end of the spectrochemical series, contrary to the assertion.
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