MDCAT Chemistry MCQ #1772

A chemist investigates the geometry of water. Which bond angle is expected when two lone pairs exert maximum repulsion on two bond pairs?

MDCAT Chemistry MCQ #1772

  1. Question 1

    Q1. A chemist investigates the geometry of water. Which bond angle is expected when two lone pairs exert maximum repulsion on two bond pairs?

    • A) 107.5 degrees
    • B) 104.5 degrees
    • C) 109.5 degrees
    • D) 180.0 degrees

    Answer: 104.5 degrees

    Explanation: The H-O-H angle in water is 104.5 degrees due to two lone pairs; NH3 is tempting but only has one lone pair.