Basic chemistry

What is Lewis acids and bases give examples?

Lewis concept of acid and bases


Lewis acids and bases examples:

Lewis acids and bases examples are listed below.A  broader acid and base theory was proposed by American physical chemist Gilbert Newton Lewis in 1923.

In the Lewis theory,


Bases are defined as electron-pair donors


Acids as electron-pair acceptors.

Acid base reactions:

Acid-base reactions involve the combination of the Lewis acid and base through sharing of the base’s electron pair.

Lewis acids and bases example:

Ammonia is an example of a Lewis base.  Electrons pair located on the nitrogen atom may be used to form a chemical bond to a Lewis acid such as boron trifluoride (BF3).

(In the following equation, the colon represents an electron pair.)

H3N: + BF3 → H3N― BF3.

Coordination compounds:

Water,ammonia and many other Lewis bases react with metal ions to form a group of species known as coordination compounds.

The reaction to form these species is another example of a Lewis acid-base reaction.

For example, the light blue colour of a solution of Cu2+ ions in water is due to the [Cu(H2O)6]2+ ion.

If ammonia is added to this solution, the water molecules attached to copper are replaced by ammonia molecules, and the beautiful deep blue ion [Cu(NH3)4]2+ is formed.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button