MDCAT Chemistry MCQ #993

How does the lanthanide contraction affect reaction mechanisms involving f-block elements?

MDCAT Chemistry MCQ #993

  1. Question 1

    Q1. How does the lanthanide contraction affect reaction mechanisms involving f-block elements?

    • A) It increases the coordination number of complexes
    • B) It reduces the ionic radius, enhancing ligand interactions
    • C) It lowers the ionization energy of f-orbital electrons
    • D) It increases the spin-only magnetic moments

    Answer: It reduces the ionic radius, enhancing ligand interactions

    Explanation: Smaller ionic radius improves ligand binding. Coordination numbers and ionization energy are not directly affected by contraction.