Chemistry - CHEMICAL BONDING Question with Solution | TestHub
The separation of charges on covalent bonded atom is responsible for the origin of dipole moment in covalent bond. A quantitative measure of the polarity of bond is it's dipole moment(μ), which is the product of charge (q) and distance(r) between the charges.
molecule have net resultant dipole moment 1.60 debye. ( Central atom Fluorine) Select impossible geometry of
Options:
Answer:
Solution:
For a molecule to have a non-zero dipole moment (), its individual bond dipoles must not cancel out.
Geometries (A) and (B): These represent bent/angular shapes where the bond dipoles and lone pair dipoles do not cancel, allowing for a net dipole moment like .
Geometry (C): This is a linear geometry where the two M–F bonds are at and the lone pairs are symmetrically arranged. In such a perfectly symmetrical linear structure, the individual dipoles cancel each other out exactly, resulting in a net dipole moment of zero.