
Interpretation:
The significant resonance structure has to be drawn.
Concept Introduction:
Resonance is a method to relating to describe about delocalized electrons inside certain molecules or polyatomic ions where the Lewis structure can’t be expressed. A molecule or ion containing delocalized electrons can be represented by using several similar structures such structures are called as resonance structures or canonical structures.
The delocalization of electron lowers the potential energy of the substance and making it more stable than any of the contributing structures. The variation in the potential energy of the actual structure and that of resemblance structure with lowest potential energy is known as resonance energy or delocalization energy.
Rules to determine significant resonance structure:
- 1) Decrease the charges
- 2) Presence of octet electrons in electronegative atoms such as Oxygen, Nitrogen and Chlorine bearing a positive charge.
- 3) Resonance structures should be avoided for two Carbon atoms bearing opposite charges.

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Chapter 2 Solutions
Organic Chemistry
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