Two well-known complex ions containing Ni are [Ni(H 2 O) 6 ] 2+ , which is green, and [Ni(en) 3 ] 2+ , which is purple. Which one of these statements is true

The crystal field splitting energy is greater for [Ni(en)3]2+ because ethylenediamine (en) is a stronger field ligand than water, leading to a larger splitting and different color absorption.

Two well-known complex ions containing Ni are [Ni(H 2 O) 6 ] 2+ , which is green, and [Ni(en) 3 ] 2+ , which is purple. Which one of these statements is true

The crystal field splitting energy is greater for [Ni(en)3]2+ because ethylenediamine (en) is a stronger field ligand than water, leading to a larger splitting and different color absorption.

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Two Well-Known Complex Ions Containing Ni Are [Ni(H₂O)₆]²⁺, Which Is

Question 56

Multiple Choice

Two well-known complex ions containing Ni are [Ni(H₂O) ₆]²⁺, which is green, and [Ni(en) ₃]²⁺, which is purple. Which one of these statements is true

A) The crystal field splitting energy (D) is greater for [Ni(en) ₃]²⁺ than for [Ni(H₂O) ₆]²⁺.
B) [Ni(en) ₃]²⁺ absorbs energy in the red region of the spectrum.
C) Both complex ions are diamagnetic.
D) [Ni(H₂O) ₆]²⁺ transmits light with wavelengths of approximately 650-700 nm.
E) The green complex absorbs green light.