MDCAT Chemistry MCQ #809

What causes the anomalous magnetic moment in the Fe²⁺ ion compared to Mn²⁺?

MDCAT Chemistry MCQ #809

  1. Question 1

    Q1. What causes the anomalous magnetic moment in the Fe²⁺ ion compared to Mn²⁺?

    • A) More unpaired electrons in Fe²⁺
    • B) Fully filled d-subshell in Fe²⁺
    • C) Electron pairing in lower d-orbitals
    • D) Hybridization of d and s orbitals

    Answer: Electron pairing in lower d-orbitals

    Explanation: Fe²⁺ has paired electrons in t₂g orbitals, reducing magnetic moment. Option A applies to Mn²⁺ instead.