alleryWhy was the concept of resonance introduced?
AOne structure is inadequate
BOne structure is inaccurate only
COne structure is inactive
DOne structure is invisible
Answer & Solution
Correct answer: A. One structure is inadequate
1. Some molecules do not match any single Lewis diagram.
2. Their measured parameters sit between the possibilities.
3. A single Lewis structure is often inadequate for representing a molecule in line with measurements.
4. So the answer is one structure is inadequate.
_Source: syllabus Chemistry Part I, Unit 4 'Chemical Bonding and Molecular Structure'_
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