Question
Chemistry Question on coordination compounds
[Fe(H2O)6]3+ is strongly paramagnetic whereas [Fe(CN)6]3− is weakly paramagnetic. H2O is a weak field ligand and CN− is a strong field ligand.
A
If both assertion and reason are true and reason is the correct explanation of assertion
B
If both assertion and reason are true but reason is not the correct explanation of assertion
C
If assertion is true but reason is false.
D
If both assertion and reason are false.
Answer
If both assertion and reason are true and reason is the correct explanation of assertion
Explanation
Solution
[Fe(CN)6]3−⇒C Nˉ⇒ Strong field ligand. Fe3+=[Ar]3d5( Refer o image o1) 1. 1 unpaired electrons. 2. Weakly paramagnetic [Fe(H2O)6]3+⇒H2O⇒ Weak field ligand. ⇒Fe3+⇒[Ar]3d5 (Refer o image o2) 5 unpaired electrons. [Fe(H2O)6]2+= Strong paramagnetic.