Which molecule has a bond angle of approximately 90° due to lone pair repulsion in a square pyramidal geometry?
In BrF₅ , bromine is sp³d² hybridized with 6 electron pairs (5 bonding, 1 lone), forming a square pyramidal shape with ~90° bond angles.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Covalent Bonding - Bond Parameters and Polarity and Fajan's Rule