Coupon Accepted Successfully!


Resonance Effect

Conditions needed for a compound to show resonance are as follows:
  1. The molecule must have conjugation.
    For example,
    Description: 39712.png
  2. Part of the molecule having conjugation should be exactly or nearly planar. The orbitals participating in resonance must be of almost equal sizes and should also be smaller in size. Bigger orbital do not overlap effectively.
    For example, Description: 39724.png will show greater resonance than Description: 39738.png as the size of O and C (both belong to same period) matches more than the size of C and Cl (C belongs to the second period, while Cl belongs to the third period).

Test Your Skills Now!
Take a Quiz now
Reviewer Name