Question

Choose the correct statement(s) regarding resonance effect.

• A. It is a permanent effect.
• B. Polarity is developed by delocalisation of $\sigma$ bonds.
• C. It is independent of distance.
• D. It is distance dependant

Answer 1

Answer: (A), (C)

It is independent of distance.

Polarity developed in conjugated systems by the delocalisation of non-bonding electrons or $\pi$ (pi) electrons due to the phenomenon of resonance is called resonance effect.
It is also known as Mesomeric effect.
It is a permanent effect
It is a distance independent effect.