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Learning objective

Explain oxidation of aldehydes to carboxylic acids.

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Topic

Aldehydes and ketones (A-level only)

Subtopic

Aldehydes and ketones (A-level only)

Aqa A Level ChemistryOrganic chemistry

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Quick explanation

Explain oxidation of aldehydes to carboxylic acids

  • This point belongs to Aldehydes and ketones (A-level only), especially Aldehydes and ketones (A-level only).
  • You need to be able to explain oxidation of aldehydes to carboxylic acids.
  • The key ideas to know are aldehyde.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

aldehyde

Why it matters

This objective helps connect Aldehydes and ketones (A-level only) to exam-style questions, flashcards, and revision notes for Aldehydes and ketones (A-level only).

Quick student answer

Which of the following reagents can be used to oxidize an aldehyde to a carboxylic acid?

Direct answer

A) Sodium dichromate (Na2Cr2O7) in dilute sulfuric acid

Key terms

  • Oxidation: The process of losing electrons or increasing oxidation state, often involving the addition of oxygen or removal of hydrogen.
  • Carboxylic Acid: An organic compound containing a carboxyl group (-COOH), formed by the oxidation of aldehydes.

Common trap

Confusing aldehydes with ketones: Remember that only aldehydes can be oxidized to carboxylic acids, while ketones are resistant to oxidation.

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