The correct increasing order of adjacent bond angle among BF3, PF3 and ClF3 : — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Step 1: Determine the molecular geometries and adjacent bond angles of each compound: BF3 is trigonal planar (120°); PF3 is trigonal pyramidal (~97.8°); ClF3 is T-shaped (~87.5°). Step 2: Compare these angles: 87.5° (ClF3) < 97.8° (PF3) < 120° (BF3). Step 3: Thus, the correct increasing order of adjacent bond angle is ClF3 < PF3 < BF3, which corresponds to option (c).