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Aldehydes, Ketones and Carboxylic Acids — Syllabus

Telangana Open School (TOSS) · Class 12 · Chemistry

What Aldehydes, Ketones and Carboxylic Acids covers in Telangana Open School (TOSS) Class 12 Chemistry: 4 topics, for the 2026-27 session.

53 questions30 flashcards5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Chemistry · 2026-27

Topics in Aldehydes, Ketones and Carboxylic Acids

1

Nomenclature of Aldehydes and Ketones

  • Aldehydes are named as alkanals by replacing the '-e' of the parent alkane with '-al'.
  • The carbonyl carbon in aldehydes is always at position 1 and is not numbered in the name.
  • When the -CHO group is attached to a ring, the compound is named as a carbaldehyde.
2

Preparation of Aldehydes and Ketones

  • Primary alcohols oxidize to aldehydes using PCC or PDC in anhydrous conditions.
  • Secondary alcohores oxidize to ketones using common oxidizing agents like K₂Cr₂O₇.
  • Ozonolysis of alkenes produces aldehydes or ketones depending on substituents.
3

Physical Properties and Reactivity

  • Carbonyl group is polar due to electronegativity difference between C and O.
  • Aldehydes and ketones have higher boiling points than hydrocarbons due to dipole-dipole interactions.
  • Lower members are soluble in water due to hydrogen bonding with H₂O.
4

Reactions of Aldehydes and Ketones

  • Nucleophilic addition: e.g., with HCN to form cyanohydrins.
  • Formation of hemiacetals and acetals — important in sugar chemistry.
  • Reaction with ammonia derivatives gives crystalline derivatives for identification.

Key Concepts

Central concept: Carbonyl Compounds

AldehydesKetonesCarboxylic AcidsCarboxylic Acid DerivativesReactions and Mechanisms

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Frequently Asked Questions

What are the important topics in Aldehydes, Ketones and Carboxylic Acids for Telangana Open School (TOSS) Class 12 Chemistry?
Key topics in Aldehydes, Ketones and Carboxylic Acids include Nomenclature of Aldehydes and Ketones, Preparation of Aldehydes and Ketones, Physical Properties and Reactivity, Reactions of Aldehydes and Ketones. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Aldehydes, Ketones and Carboxylic Acids for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 53 practice questions on Aldehydes, Ketones and Carboxylic Acids. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Telangana Open School (TOSS) Class 12 Chemistry Syllabus

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