Which of the following statement is not correct ?A Resonating structures do not show atomic delocalisation. B Resonance effect is permanent effect. C Resonance energy is difference in energy between real structure and most stable hypothetical canonical form. D Resonating structures have always same energy.
Question
Which of the following statement is not correct ?A Resonating structures do not show atomic delocalisation. B Resonance effect is permanent effect. C Resonance energy is difference in energy between real structure and most stable hypothetical canonical form. D Resonating structures have always same energy.
Solution
To determine which statement is not correct, let's analyze each option:
A) Resonating structures do not show atomic delocalisation. This statement is incorrect. Resonating structures do show atomic delocalization, which means that electrons are not localized to a specific atom but are spread out over multiple atoms.
B) Resonance effect is permanent effect. This statement is correct. The resonance effect is a permanent effect in molecules that exhibit resonance. It is a result of the delocalization of electrons and can have a significant impact on the chemical properties of the molecule.
C) Resonance energy is the difference in energy between the real structure and the most stable hypothetical canonical form. This statement is correct. Resonance energy refers to the difference in energy between the actual structure of a molecule and the most stable hypothetical structure, which is represented by the canonical form.
D) Resonating structures always have the same energy. This statement is incorrect. Resonating structures can have different energies. The energy of a resonating structure depends on the distribution of electrons and the stability of the structure.
Therefore, the statement that is not correct is D) Resonating structures always have the same energy.
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