Concept explainers
Interpretation:
The Lewis structure for the resonance forms, formal charges and bonding in formate ion has to be discussed.
Concept Introduction:
Lewis Structure: A Lewis structure shows a covalent bond as pair of electrons shared between two atoms.
Formal charge (F.C): The charges that assigned to each atom in a molecule or ion by a set of arbitrary rules and don not actually represent the actual charges on the atoms are called as formal charges.
The formal charge is calculated using the formula,
The Lewis structure with zero formal charge or least separated formal charges is the preferred structure of the molecule.
Resonance: Each of the individual Lewis formulas is said to be a resonance form and the use of multiple Lewis formula is called resonance. The two dashed lines taken together represent a pair of bonding electrons that spread over the two bonds. Such a superimposed formula is called resonance hybrid because it is a hybrid of the various resonance forms.

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Chapter 7 Solutions
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