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Chemistry Isomerism

What is Isomerism? What are Isomers?

Isomerism is a phenomenon in which compounds with the same molecular formula have different structures. These compounds are called isomers. Isomerism is a common occurrence in can vary significantly.

Types of Isomerism

There are two main types of isomerism:

  • Structural isomerism occurs when the . Butane has a straight chain of four carbon atoms, while isobutane has a branched chain of four carbon atoms.
  • Stereoisomerism occurs when the are connected in the same order, but they have different spatial arrangements. For example, cis-2-butene and trans-2-butene are stereoisomers. Cis-2-butene has the two methyl groups on the same side of the double bond, while trans-2-butene has the two methyl groups on opposite sides of the double bond.
Structural Isomerism

Structural isomerism can be further divided into several types, including:

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