Isomer; are called molecular compounds. There are 3 different varieties.

The isomer, which has 3 different types, is called the molecules that differ in closed and open formulas.

#### WHAT IS ISOMER

Molecules with the same closed formula and different open formula are called isomers.

Known as a term in the ancient Greek period, isos, with its equal meaning, is a structure that came together over the words meros, that is, part.

#### TYPES OF ISOMERS

There are 3 different types of isomer. Enzymes using isomers are called isomerases. The types of isomers are as follows:

• – Chain and branch isomerism
• – Positional isomerism
• functional group isomerism