Home › NEET UG › Chemistry › Chemical Bonding and Molecular Structure › Which of the following statements about resonanc…
Which of the following statements about resonance is INCORRECT?
AThere is a dynamic equilibrium between the canonical forms
BCanonical (contributing) structures have no real existence
CThe molecule exists as the resonance hybrid, not switching between canonical forms
DResonance lowers the energy of the molecule compared with any single canonical form
Answer & Solution
Correct answer: A. There is a dynamic equilibrium between the canonical forms
There is **no equilibrium** between canonical forms (that would be tautomerism, not resonance). The molecule has a single fixed structure — the resonance hybrid.
Related questions
Besides VSEPR and the Kossel Lewis approach, which two theories are listed?Which theory is abbreviated VSEPR?Why can lattice enthalpy not be calculated directly from attraction and repulsion alone?Ionic bonds form most easily between elements with low ionization enthalpies and high negaWhat is the lattice enthalpy of sodium chloride?Lattice enthalpy is the energy required to separate one mole of an ionic solid into:The structures contributing to a resonance hybrid are called:Why was the concept of resonance introduced?