NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Electronegative of fluorine is more than either boron or phosphorus. What conclusion can be drawn from the fact that B F 3 has no dipole moment but P F 3 does
Options
- AB F 3 is not spherically symmetrical but P F 3 is
- BB F 3 molecule must be linear
- CThe atomic radius of P is larger than the atomic radius of B
- DThe B F 3 molecule must be planar triangular
Correct answer
D. The B F 3 molecule must be planar triangular
Step-by-step solution
B F 3 molecule must be planar triangular thus net dipole becomes zero while P F 3 is pyramidal.