IB Chemistry HL 3.3.2 Homolytic Fission Questions

Use real HL exam questions to represent homolytic fission with single-electron arrows and write balanced halogen initiation equations under UV or heat.

Exam points

Explain homolytic fission as breaking a covalent bond so one electron goes to each atom, producing radical dots and single-barbed electron movement.
State the UV-light or heat initiation of a halogen bond and write a balanced initiation equation with radical products.

[Maximum number: 1]

Alkenes, such as A (shown below), are important intermediates in the petrochemical industry because they undergo addition reactions to produce a wide variety of products, such as the conversion shown below.

Figure for Question IB Chemistry HL 3.3.2 Homolytic Fission Questions question 1 — IB Chemistry HL

Another way to make B is the reaction shown below.

State the conditions required for this reaction to occur.

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IB Chemistry HL 3.3.2 Homolytic Fission Questions question 1