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Aldehydes, Ketones and Carboxylic Acids

ICSE · Class 12 · Chemistry

Practice quiz for Aldehydes, Ketones and Carboxylic Acids — ICSE Class 12 Chemistry. MCQs and questions with answers to test your preparation.

103 questions36 flashcards5 concepts

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A flowchart summarizing the key methods for preparing carboxylic acids, showing starting materials, reagents, and products for each reaction.
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Quick Quiz: Aldehydes, Ketones and Carboxylic Acids

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1

What is the functional group in aldehydes?

2

What is the IUPAC name of CH3COCH3?

3

Which reagent is used in Rosenmund reduction?

4

Aldehydes and ketones do not show hydrogen bonding between their molecules. This is because:

103 Questions·
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Sample Questions

1multiple choice

What is the product of the reaction: Acetaldehyde + HCN →?

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CH3CH(OH)CN (lactonitrile)

HCN adds to acetaldehyde in nucleophilic addition to give CH3CH(OH)CN (lactonitrile or acetaldehyde cyanohydrin).

2multiple choice

Aldehydes give a silver mirror with Tollens' reagent. This is because they are:

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Reducing agents

Aldehydes are oxidised to carboxylic acids by Tollens' reagent (ammoniacal AgNO3), reducing Ag+ to Ag (silver mirror). They act as reducing agents.

3multiple choice

What is the product of aldol condensation of acetaldehyde (CH3CHO) with dilute NaOH?

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3-hydroxybutanal (aldol)

2 CH3CHO (dilute NaOH) → CH3CH(OH)CH2CHO (3-hydroxybutanal = aldol). This is the classic aldol condensation product.

4multiple choice

Which of the following does NOT reduce Fehling's solution?

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Benzaldehyde (C6H5CHO)

Aromatic aldehydes (like benzaldehyde) do NOT reduce Fehling's or Benedict's solution. Only aliphatic aldehydes give red Cu2O precipitate.

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What are the important topics in Aldehydes, Ketones and Carboxylic Acids for ICSE Class 12 Chemistry?
Key topics in Aldehydes, Ketones and Carboxylic Acids include Comprehensive Overview of Aldehydes, Ketones, and Carboxylic Acids, Aldehydes, Ketones and Carboxylic Acids - Complete Overview, Carboxylic Acids — Complete Concept Map. These are the concepts ICSE Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Aldehydes, Ketones and Carboxylic Acids — ICSE Class 12 Chemistry?
Understand the core concepts first, then work through the 103 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

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