Edexcel A-Level Chemistry AS 10.12 The Trend in Reactivity of Primary Secondary and Tertiary Halogenoalkanes Questions

Practise Edexcel IAL Chemistry 10.12 by comparing primary and tertiary halogenoalkane reactivity using carbon environment, mechanism context and C–X bond strength.

Exam points

Select the tertiary halogenoalkane as fastest when comparing structural isomers.
Explain a structural-rate difference using halogenoalkane class and mechanism context.

[Maximum number: 1]

This question is about bromoalkanes with the molecular formula $\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Br}$ .

Give the structure of the $\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Br}$ bromoalkane that would react fastest with aqueous silver nitrate in ethanol.

The fastest reacting bromoalkane is the tertiary bromoalkane with structure $\ce{(CH3)3CBr}$ , i.e. 2-bromo-2-methylpropane.

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Edexcel A-Level Chemistry AS 10.12 The Trend in Reactivity of Primary Secondary and Tertiary Halogenoalkanes Questions question 1