試題詳解

複選題
29. Two well-known complex ions containing Ni are [Ni(H₂O)₆]²⁺, which is green, and [Ni(en)₃]²⁺ (en = ethylenediamine), which is purple. Which of these statements are true?
(A) The green complex absorbs green light.
(B) The reaction of [Ni(H₂O)₆]²⁺with excess of en should afford [Ni(en)₃]²⁺.
(C) Both complex ions are paramagnetic.
(D) Both complex ions are 18-electron species.
(E) The crystal field splitting energy is smaller for [Ni(en)₃]²⁺ than for [Ni(H₂O)₆]²⁺