CBSE Class 11-science Answered
WHAT IS RESONANCE?I NEED GENERAL DESCRIPTION OF IT
Asked by Sumitra Mandal | 06 Nov, 2013, 08:50: PM
Expert Answer
When a molecule cannot be represented by a single structure but its characteristic properties can be described by two or more than two structures, then the actual structure is said to be a resonance hybrid of these structure.
Resonance helps to represent the possible ion intermediates by having the extra electron or electrons delocalized within the molecules. A molecule that has several resonance structures is more stable than a molecule that has less resonance structures.
The different structures by which the molecule is represented are called resonating structures or canonical forms.
Resonance in molecules is a type of electron delocalization. Since electrons repel, the electrons are spreading out between the two states ("resonance structures"), neither of those structures are really a good way to represent the molecule. The closest model of the molecule is a hybrid of the two, with the electrons smeared out over both spots where the double bond can exist.
For example,
Answered by Hanisha Vyas | 07 Nov, 2013, 12:38: PM
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