Reactions of Halogenoalkanes (AQA A-Level Chemistry): Flashcards

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Reactions of Halogenoalkanes
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Two main types of halogenoalkane reactions

Nucleophilic substitution and elimination

Nucleophilic substitution definition

Nucleophile attacks carbon and replaces the halogen

Common nucleophiles (3 examples)

OH−OH^-, CN−CN^-, and NH3NH_3

OH−OH^- role in nucleophilic substitution

Acts as a nucleophile

Elimination reaction product type

Alkenes

OH−OH^- role in elimination

Acts as a base

How C-halogen bond breaks in substitution

Heterolytically

Solvent that favours nucleophilic substitution

Aqueous potassium hydroxide

Solvent that favours elimination

Ethanolic potassium hydroxide

Key factor determining substitution vs elimination

Choice of solvent (water or ethanol)

Explore AQA A-Level Chemistry Revision Notes by Topics

Introduction to Organic Chemistry

Alkanes

Halogenoalkanes

Alkenes

Alcohols

Organic Analysis

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Introduction to Organic Chemistry

Alkanes

Halogenoalkanes

Alkenes

Alcohols

Organic Analysis

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Introduction to Organic Chemistry

Alkanes

Halogenoalkanes

Alkenes

Alcohols

Organic Analysis

Explore AQA A-Level Chemistry Exam Questions by Topics

Introduction to Organic Chemistry

Alkanes

Halogenoalkanes

Alkenes

Alcohols

Organic Analysis

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