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Edexcel IAL Chemistry 10.3 Heterolytic bond breaking

For the one directly tagged mechanism task, name heterolytic fission and show the bonding pair moving to the more electronegative atom as the intermediate forms.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Describe intermediate formation by naming heterolytic fission and tracking the bond pair.

10.3—Heterolytic bond breaking results in species that are electrophiles or nucleophiles question 1

[Maximum number: 2]

Some reactions of a halogenoalkane are summarised in the diagram. All the reactions are of the same type and mechanism.

Figure for Question 10.3—Heterolytic bond breaking results in species that are electrophiles or nucleophiles question 1 — Edexcel A-Level Chemistry AS

An incomplete mechanism for Reaction 2 is shown.

Figure for Question 10.3—Heterolytic bond breaking results in species that are electrophiles or nucleophiles question 1 — Edexcel A-Level Chemistry AS

intermediate J

Describe how intermediate J is formed in the first step, naming the process that occurs.
(2)

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