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Isomerism in Chemistry

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Questions and Answers

What is the defining characteristic of isomers?

Having the same molecular formula but differing in the way atoms are joined (correct)

Having the same molecular formula and structural formula

Having different molecular formulas but the same structural formula

Being conformers that result from rotations about single bonds

What type of isomers have the same connectivity of atoms?

Stereoisomers (correct)

Constitutional isomers

Conformational isomers

Enantiomers

What is the key difference between isomers and conformers?

Isomers are long-lived and isolable, while conformers are not (correct)

Isomers result from rotations about single bonds, while conformers result from bond breaking

Isomers have different molecular formulas, while conformers have the same molecular formula

Isomers are stereoisomers, while conformers are constitutional isomers

What is the term for isomers that are non-superimposable mirror images?

<p>Enantiomers (C)</p> Signup and view all the answers

What is the process required for isomerization to occur?

<p>Bond breaking (A)</p> Signup and view all the answers

Study Notes

Isomerism

Isomerism is a phenomenon where two or more compounds have the same molecular formula but differ in the way their atoms or groups are bonded together.

Characteristics of Isomers

Isomers have the same molecular formula but different structural formulae.
They contain the same atoms bonded together in different ways.

Types of Isomers

Constitutional isomers: have different connectivity of atoms.
Stereoisomers: have the same connectivity of atoms.
Enantiomers: a type of stereoisomers.
E and Z double bonds: a type of stereoisomers.

Properties of Isomers

Isomers are generally long-lived and isolable.
Isomerization requires breaking bonds.

Contrast with Conformers

Conformers: many different spatial arrangements resulting from rotations about single bonds.
Isomers differ from conformers in being long-lived and isolable.

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Description

Learn about isomerism, a phenomenon where compounds have the same molecular formula but differ in their atomic arrangement. Discover the different types of isomers and their characteristics.