MDCAT Chemistry MCQ #984

Why does a reaction involving s-orbital overlap typically proceed faster than one with p-orbital overlap?

MDCAT Chemistry MCQ #984

  1. Question 1

    Q1. Why does a reaction involving s-orbital overlap typically proceed faster than one with p-orbital overlap?

    • A) S-orbitals have higher electron density near the nucleus
    • B) P-orbitals require more energy to reach transition states
    • C) S-orbitals are less affected by electron shielding
    • D) P-orbitals have greater directional specificity

    Answer: S-orbitals have higher electron density near the nucleus

    Explanation: S-orbital electron proximity to nucleus enhances overlap. Directional specificity is irrelevant to speed, while energy and shielding are secondary factors.