MDCAT Chemistry MCQ #1732

According to VSEPR theory, the bond angle in Ammonia (NH3) is 107.5 degrees instead of 109.5 degrees. This deviation occurs because:

MDCAT Chemistry MCQ #1732

  1. Question 1

    Q1. According to VSEPR theory, the bond angle in Ammonia (NH3) is 107.5 degrees instead of 109.5 degrees. This deviation occurs because:

    • A) Bond pairs repel each other more than lone pairs
    • B) Lone pair occupies more space than bond pairs
    • C) Nitrogen atom undergoes sp2 hybridization
    • D) Three hydrogen atoms are too large to fit

    Answer: Lone pair occupies more space than bond pairs

    Explanation: Lone pair-bond pair repulsion reduces the angle from 109.5 to 107.5. Option A refers to the ideal tetrahedral angle without lone pairs.