Organic Analysis (AQA A-Level Chemistry): Flashcards

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Identification of Functional Groups by Test-Tube Reactions
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Reagent for alcohol oxidation test

Acidified potassium dichromate (K2Cr2O7K_2Cr_2O_7 + H2SO4H_2SO_4)

1°/2° alcohol + dichromate color change

Orange to green

3° alcohol + acidified dichromate result

No color change (remains orange)

1° alcohol oxidation product (reflux)

Carboxylic acid

1° alcohol oxidation product (distillation)

Aldehyde

2° alcohol oxidation product (reflux)

Ketone

Aldehyde + Fehling's result

Blue to brick-red precipitate

Aldehyde + Tollens' reagent result

Silver mirror forms

Carboxylic acid + sodium carbonate result

Fizzing (CO2CO_2 produced), limewater turns cloudy

Alkene + bromine water result

Orange to colourless (decolourises)

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

Explore AQA A-Level Chemistry Quizzes by Topics

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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