Loading lesson

Halogenoalkanes: substitution and elimination

Core organic chemistry · Lesson 5 of 6

Lesson 5 of 6

Ask a tutor

Lesson 5 of 6 · Core organic chemistry

Halogenoalkanes: substitution and elimination

3 quick checks≈3% of the testCore

Reading is free. Sign in to tick off lessons, keep your place and track your mastery.

By the end you’ll be able to

Identify primary, secondary and tertiary halogenoalkanes from structure and relate structure to typical reaction behaviour.
Explain the polar nature of the $\mathrm{C-X}$ bond and the role of hydroxide ion and other nucleophiles in nucleophilic substitution.
Write equations for the hydrolysis of halogenoalkanes and for substitution with hydroxide, cyanide, ammonia and other specified nucleophiles where included by the specification.

0% read

Describe and explain elimination of hydrogen halides from halogenoalkanes using alcoholic hydroxide to form alkenes.

Interpret practical evidence from halogenoalkane hydrolysis, including precipitation with silver nitrate after warming, and compare the relative rates of hydrolysis of chloro-, bromo- and iodoalkanes in terms of bond enthalpy.

Predict whether substitution or elimination is favoured from the reagent, conditions and substrate structure at this level.

This lesson hasn’t been written yet

Chemistry lessons are written from the official syllabus the first time a learner opens them, then saved for everyone. Sign in and this one is written for you in a minute or two. It’s free.

Sign in Create a free account