Question

urgent please

all 3 of them

Answer 1

Answer:

It is the energy difference between the actual molecule and the most stable Lewis (Canonical) structure of that molecules, or we can say that it is the energy which the molecule (system) will release if that Lewis structure of molecule start resonating

The resonance structures of CH2 = CH – CHO can be written as: Structure 1 is the most stable because each carbon and oxygen atom has an octet and no carbon or oxygen atom has a charge. In structure II, the negative charge on the more electronegative atom and a positive charge on the more electropositive atom.

There are two types of Resonance effects namely positive resonance effect and negative resonance effect. Positive Resonance Effect- Positive resonance effect occurs when the groups release electrons to the other molecules by the process of delocalization.

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