MDCAT Chemistry MCQ #923

Which statement differentiates Hund's rule from the Aufbau principle?

MDCAT Chemistry MCQ #923

  1. Question 1

    Q1. Which statement differentiates Hund's rule from the Aufbau principle?

    • A) Hund's rule maximizes unpaired electrons in degenerate orbitals
    • B) Aufbau principle fills orbitals in increasing energy order
    • C) Hund's rule applies to p-orbitals only
    • D) Aufbau principle governs paired electron spins

    Answer: Hund's rule maximizes unpaired electrons in degenerate orbitals

    Explanation: Hund's rule ensures maximum unpaired electrons (A). Aufbau fills orbitals systematically (B), not spin pairing.