MDCAT Chemistry MCQ #1780

A chemist investigates expanded octets in phosphorus compounds. Which molecule requires sp3d hybridization to explain its five equivalent equatorial and axial bonds?

MDCAT Chemistry MCQ #1780

  1. Question 1

    Q1. A chemist investigates expanded octets in phosphorus compounds. Which molecule requires sp3d hybridization to explain its five equivalent equatorial and axial bonds?

    • A) PCl3
    • B) BCl3
    • C) PCl5
    • D) CCl4

    Answer: PCl5

    Explanation: PCl5 involves sp3d hybridization to accommodate five chlorine atoms; PCl3 is tempting but only uses sp3 hybridization for three bonds.