(a)
Interpretation:
An explanation corresponding to the fact that pyrrole is isoelectronic with the cyclopentadienyl anion is to be stated.
Concept introduction:
Isoelectronic species are those species that have same number of electrons or same electronic configuration. These species have same chemical properties.
(b)
Interpretation:
The difference between the compound cyclopentadienyl anion and pyrrole is to be determined.
Concept introduction:
Bases are the molecules that can accept the proton by sharing its lone pair of electrons. The atoms that are basic in a molecule always have the lone to lone pair to accept the proton. Some of the molecules may contain more than one basic atom.
The lone pairs that are present in the molecule can be neutral or anionic atoms.
(c)
Interpretation:
The resonance structures that show the charge distribution on the pyrrole structure are to be represented.
Concept introduction:
The concept of resonance related to the stability of the molecules. Resonance structures show the movement of delocalized electrons in the molecule, when the bonding of the molecule cannot express by the single structures.
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Organic Chemistry (9th Edition)
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