2 x 1 hour lessons

This module focuses on halogenoalkanes and their reactions via nucleophilic substitution and elimination. You’ll learn how the polarity of the carbon–halogen bond leads to reactivity and how different conditions favour different products.

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By the end of this module you will be able to: • describe the bonding and polarity of the C–X bond in halogenoalkanes • explain nucleophilic substitution reactions with aqueous OH⁻, CN⁻ and NH₃ • draw curly arrow mechanisms for nucleophilic substitution • describe elimination reactions with ethanolic OH⁻ to form alkenes • predict the major organic product under given conditions • explain competing substitution and elimination reactions based on conditions • relate reactivity to bond enthalpy and halogen identity

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Edexcel Specification Points: Topic 6D – Halogenoalkanes