MDCAT Chemistry MCQ #1783

In a Molecular Orbital Theory calculation, a student determines bond orders. Which oxygen species possesses the highest bond order and shortest bond length?

MDCAT Chemistry MCQ #1783

  1. Question 1

    Q1. In a Molecular Orbital Theory calculation, a student determines bond orders. Which oxygen species possesses the highest bond order and shortest bond length?

    • A) O2
    • B) O2-
    • C) O2-2
    • D) O2+

    Answer: O2+

    Explanation: The bond order of O2+ is 2.5 because an electron is removed from an antibonding orbital; O2 is tempting but has a bond order of 2.