LAQ : Write the limitations of the octet rule in chemical bond formation

Question

Write the limitations of the octet rule in chemical bond formation. 

Answer

The limitations of the octet rule in chemical bond formation are:

1. The octet rule is not applicable to elements that have more or less than eight electrons in their valence shell, such as boron and phosphorus.
2. The octet rule does not explain the bonding in molecules that involve atoms with odd numbers of electrons, such as NO and NO₂.
3. The octet rule assumes that all atoms in a molecule have the same electronegativity, which is not always true in reality.
4. The octet rule does not explain the phenomenon of resonance, where multiple Lewis structures can represent a single molecule.