Topic 18.1: Lewis acids and bases

Question 1

Lewis acid

Answer 1

Any species that can accept a pair of electrons (lone pair of e-)

Question 2

Lewis base

Answer 2

Any species that can donate a pair of electrons (space for lone pair of e-)

Question 3

What is formed when these substances react?

Answer 3

Coordinate covalent bond

Question 4

Examples of Lewis acids

Answer 4

Transition metals

Nucleophiles

Question 5

Examples of Lewis bases

Answer 5

Ligands

Electrophiles

Question 6

Relationship between Bronsted-Lowry and Lewis bases

Answer 6

A Lewis base is a Bronsted Lowry base

Question 7

Relationship between Bronsted-Lowry and Lewis acids

Answer 7

Not all Lewis acids are Brønsted-Lowry acids

a) Acids which cannot donate a H+ ion, but can still accept a pair of e-