Arrange the three complexes listed below in order of increasing crystal field energy , Δ . [Fe(H2O) 6]3+ [Fe(H2O) 6]2+ [Ru(H2O) 6]3+
A) (smallest Δ ) [Fe(H2O) 6]3+ < [Fe(H2O) 6]2+ < [Ru(H2O) 6]3+ (greatest Δ)
B) (smallest Δ ) [Fe(H2O) 6]2+ < [Fe(H2O) 6]3+ < [Ru(H2O) 6]3+ (greatest Δ)
C) (smallest Δ ) [Ru(H2O) 6]3+ < [Fe(H2O) 6]3+ < [Fe(H2O) 6]2+ (greatest Δ)
D) (smallest Δ ) [Ru(H2O) 6]3+ < [Fe(H2O) 6]2+ < [Fe(H2O) 6]3+ (greatest Δ)
E) (smallest Δ ) [Fe(H2O) 6]3+ < [Ru(H2O) 6]3+ < [Fe(H2O) 6]2+ (greatest Δ)
Correct Answer:
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