What is the molecular geometry of the Phosphorus pentachloride (PCl₅) molecule in the gas phase?
Octahedral
Tetrahedral
Trigonal bipyramidal
Square pyramidal
📝 Detailed explanation
In PCl₅, the central Phosphorus atom has 5 bonding pairs and 0 lone pairs. According to VSEPR theory, 5 electron domains result in a trigonal bipyramidal geometry.