Donora-Type Incidents in the United States Have Not Been Repeated

question 60

True/False

Donora-type incidents in the United States have not been repeated.

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Definitions:

Formal Charges

A bookkeeping tool used in chemistry to account for the distribution of electrons among atoms in a molecule, helping to identify the most stable resonance form.

Nucleophilic Acyl Substitution

A reaction where a nucleophile replaces the leaving group in an acyl compound.

Carbonyl

A functional group consisting of a carbon atom double-bonded to an oxygen atom \(\text{C=O}\).

Leaving Group

An atom or group that departs with a pair of electrons in a chemical reaction, making a bond-breaking step feasible.