Question

Sometimes the behaviour of a compound is explained by assuming that it exists in between two or more different possible structures. This phenomenon is called _____________.

• A. isomerism
• B. resonance
• C. mutarotation
• D. allotropism

Answer 1

The correct option is B resonance

Sometimes the behavior of a compound is explained by assuming that it exists between two or more different possible structures. This phenomenon is called resonance.
Resonance or mesomerism is a way of describing delocalized electrons within certain molecules or polyatomic ions where the bonding cannot be expressed by one single Lewis structure.

Option B is correct.