Aldehydes & Ketones (A-level only) (AQA A-Level Chemistry): Flashcards

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Aldehydes & Ketones
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Structure of carbonyl group

C=OC=O (carbon-oxygen double bond)

Functional group of aldehydes

−CHO-CHO

Formation of aldehydes

Oxidation and distillation of primary alcohols

Formation of ketones

Oxidation of secondary alcohols

Further oxidation of aldehydes produces

Carboxylic acids

Ketones and further oxidation

Do not undergo further oxidation (resistant)

Tollens' reagent positive result with aldehydes

Silver mirror forms

Fehling's solution positive result with aldehydes

Brick-red precipitate forms

Acidified dichromate with aldehydes colour change

Orange to green

Solubility of short chain aldehydes/ketones in water

Soluble due to H-bonds with polar carbonyl groups

Explore AQA A-Level Chemistry Revision Notes by Topics

Optical Isomerism (A-level only)

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Explore AQA A-Level Chemistry Model Answers by Topics

Optical Isomerism (A-level only)

Aldehydes & Ketones (A-level only)

Carboxylic Acids & Derivatives (A-level only)

Aromatic Chemistry (A-level only)

Amines (A Level only)

Polymers (A Level only)

Amino acids, Proteins & DNA (A Level only)

Organic Synthesis (A Level only)

Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

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Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

Explore AQA A-Level Chemistry Quizzes by Topics

Optical Isomerism (A-level only)

Aldehydes & Ketones (A-level only)

Carboxylic Acids & Derivatives (A-level only)

Aromatic Chemistry (A-level only)

Amines (A Level only)

Polymers (A Level only)

Amino acids, Proteins & DNA (A Level only)

Organic Synthesis (A Level only)

Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

Show more

Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

Explore AQA A-Level Chemistry Exam Questions by Topics

Optical Isomerism (A-level only)

Aldehydes & Ketones (A-level only)

Carboxylic Acids & Derivatives (A-level only)

Aromatic Chemistry (A-level only)

Amines (A Level only)

Polymers (A Level only)

Amino acids, Proteins & DNA (A Level only)

Organic Synthesis (A Level only)

Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

Show more

Organic Mechanisms (A Level only)

Nuclear Magnetic Resonance Spectroscopy (A Level only)

Chromatography (A-level only)

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