Single Choice

The canonical or resonating structures of a molecule required to describe the structure of a molecule follow which of the following rules?

AThe relative position of all atoms can differ
BThe same number of unpaired and paired electrons in all structures
Correct Answer
CThe energy of each structure is different
DLike charges are present on adjacent atoms

Solution

All resonance structures must have the same number of valence electrons.
Electrons are not created or destroyed. You must have as many electrons in the structures that you create as there were in the starting structure.
So the correct option is B .
The same number of unpaired and paired electrons In all structures.

SIMILAR QUESTIONS

Chemical Bonding

The number of possible resonance structures for $$CO^{2-}_{3}$$ is:

Chemical Bonding

Label formal charges and predict which of the following is the most likely resonance structure for $${ N }_{ 2 }O$$ :

Chemical Bonding

Which one of the following resonating structures 1-methoxy-1, 3-butadiene is least stable?

Chemical Bonding

An element $$X$$ has $$2$$ electron in its $$M$$ shells, it forms bond with an element $$Y$$ which has $$7$$ electrons in its third orbit. Show by orbital diagram the formation of compound between $$X$$ and $$Y$$

Chemical Bonding

Which of the following conditions is not correct for resonating structures?

Chemical Bonding

Which of the following structures is the most preferred and hence of lowest energy for $$SO_{3}$$?

Chemical Bonding

Which of the following molecules does not show any resonating structures?

Chemical Bonding

$$CO_2$$ molecule is not isostructural with :

Chemical Bonding

Which of the following have a linear structure?

Chemical Bonding

$$BeCl_{2}$$ is not isostructural with :

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