Explain Lewis acid-base theory with examples.

Lewis's acid: A compound which accept lone pair of electrons is called Lewis acid.
Types of Lewis acids:
a) Simple cations: Ag⁺, Co⁺³
b) Compounds in which central atom has incomplete octet.
Eg : BF₃, BCl₃
c) Molecules having multiple bonds between atoms of dissimilar electronegativities.
Eg : CO₂, SO₂
Lewis's base: A compound which donate lone pair of electrons is called Lewis base.
Types of Lewis base:
a) Simple anions: Cl^–, OH
b) Molecules with one or more lone pair of^– electrons on central atom.
Eg : H₂O, NH₃
c) Molecules with multiple bonds
Eg : CO, NO
Neutralization: Formation of coordinate covalent bond between acid and base.
Eg : Formation of hydronium ion