MDCAT Chemistry MCQ #996

Which factor determines the preference for syn vs anti addition mechanisms in electrocyclic reactions?

MDCAT Chemistry MCQ #996

  1. Question 1

    Q1. Which factor determines the preference for syn vs anti addition mechanisms in electrocyclic reactions?

    • A) Conservation of orbital symmetry
    • B) Electron density distribution in conjugated systems
    • C) Spin state of the reacting electrons
    • D) Hybridization of the terminal atoms

    Answer: Conservation of orbital symmetry

    Explanation: Orbital symmetry conservation is a fundamental rule. Electron density and hybridization are secondary factors.