Chapter 2: Carbonyl Compounds and Nucleophilic Addition

A-level ChemistryModule 6: Organic Chemistry & Analysis8 topicsHigher

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Releases 1 August 2026

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Module 6: Organic Chemistry and Analysis: Carbonyl Compounds and Nucleophilic Addition - Authored Long Answer Questions

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4 questions25 marks37.5 min

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6 marksdescribestandardOCR A

For Carbonyl Compounds and Nucleophilic Addition, describe how carbonyl polarity and nucleophilic addition applies to propanal reacting with hydrogen cyanide.

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6 markscalculatehardOCR A

Using propanal reacting with hydrogen cyanide, calculate a relevant OCR A Carbonyl Compounds and Nucleophilic Addition quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Carbonyl Compounds and Nucleophilic Addition: Reaction time (min) vs Cyanohydrin yield (%)

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The graph for Carbonyl Compounds and Nucleophilic Addition shows data from propanal reacting with hydrogen cyanide. Explain the pattern using the data and relevant chemistry principles.

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6 marksevaluatestandardOCR A

In propanal reacting with hydrogen cyanide, evaluate the experimental method or model assumptions used when applying carbonyl polarity and nucleophilic addition.

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1. Benzene, Aromatic Chemistry and Phenols

3. Carboxylic Acids, Esters and Acyl Derivatives

Key learning objectives

Understand the key principles behind Carbonyl Compounds and Nucleophilic Addition.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.