CBSENEETJEEClass 11

What is isomerism?

Answer

Isomerism is the phenomenon in which two or more compounds have the same molecular formula but different structural arrangements or spatial arrangements of atoms.

The working

Definition

Compounds with the same molecular formula but different properties are called isomers, and the phenomenon is isomerism.

Structural isomerism

Here atoms are connected in a different order. Its types include chain, position, functional group, and metamerism.

Stereoisomerism

Here atoms have the same connectivity but a different arrangement in space. It includes geometrical (cis-trans) and optical isomerism.

Why it matters

Isomers can have very different physical and chemical properties, which is why the huge diversity of organic compounds exists.

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