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Lewis Acids and Bases Quiz

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Questions and Answers

Which of the following best describes a Lewis acid?

A chemical species that readily donates its lone pair of electrons

A chemical species that forms a dative bond with a Lewis base

A chemical species with an empty orbital capable of accepting an electron pair from a Lewis base (correct)

A chemical species with a filled orbital capable of donating an electron pair to a Lewis base

Which of the following is an example of a Lewis base?

CH4

NH3 (correct)

HCl

H2O

In the context of a specific chemical reaction between NH3 and Me3B, what is formed?

Me3B NH3

Me3NH3

NH3Me3

NH3 BMe3 (correct)

What type of bond is formed in a Lewis adduct?

<p>Dative bond</p> Signup and view all the answers

How are the terms nucleophile and electrophile related to Lewis acids and bases?

<p>They are more or less interchangeable</p> Signup and view all the answers

Study Notes

Lewis Acids and Bases

A Lewis acid is a species that accepts a pair of electrons to form a covalent bond.
A Lewis base is a species that donates a pair of electrons to form a covalent bond.

Formation of Lewis Adducts

In the reaction between NH3 and Me3B, a Lewis adduct is formed.
A Lewis adduct is a compound that results from the formation of a covalent bond between a Lewis acid and a Lewis base.

Bonding in Lewis Adducts

The bond formed in a Lewis adduct is a covalent bond, resulting from the sharing of a pair of electrons between the Lewis acid and Lewis base.

Nucleophiles and Electrophiles

A Lewis base can also be referred to as a nucleophile, as it donates a pair of electrons to form a covalent bond.
A Lewis acid can also be referred to as an electrophile, as it accepts a pair of electrons to form a covalent bond.
The terms nucleophile and electrophile are related to Lewis acids and bases, as they describe the electron-donating and electron-accepting properties of these species.