試題詳解

29. Consider the molecular-orbital energy-level diagrams for O₂ and NO. Which of the following is true?I : Both molecules are paramagnetic； II: The bond strength of O₂ is greater than the bond strength of NO； III: NO is an example of a homonuclear diatomic molecule； IV: The ionization energy of NO is smaller than the ionization energy of NO⁺ .
(A) I and II only
(B)I, II, and IV
(C) I and IV
(D) II and III
(E) I only