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⁺.

Question

Quizplus · Accepted Answer

Both O2 and NO are paramagnetic due to unpaired electrons. NO is not homonuclear as it consists of different atoms (N and O). The ionization energy of NO is smaller than that of NO+ because removing an electron from a positively charged ion requires more energy.

Consider the Molecular-Orbital Energy-Level Diagrams for O2 and NO

Consider the Molecular-Orbital Energy-Level Diagrams for O₂ and NO