Which molecule has a bond angle of exactly 120° due to sp² hybridization and no lone pairs?
In BH₃ , boron is sp² hybridized with 3 bonding pairs and no lone pairs, forming a trigonal planar shape with 120° bond angles.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Valence Bond Theory and Hybridisation - sp sp2 sp3 dsp2