Question detail
Explain how chlorine radicals are formed from chlorofluorocarbons (CFCs).
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Halogenoalkanes
Question
Explain how chlorine radicals are formed from chlorofluorocarbons (CFCs).
Answer
Chlorine radicals are formed from CFCs when they undergo photodissociation. In this process, UV radiation breaks the carbon-chlorine bond, resulting in the formation of chlorine radicals and other products.
Explanation
This answer is strong because it clearly describes the mechanism of chlorine radical formation from CFCs, linking the process to the role of UV radiation. The question tests understanding of the chemical reactions involving CFCs and their environmental impact.
Common mistake
Misunderstanding CFC Decomposition
Students often incorrectly state that CFCs decompose directly into chlorine gas without detailing the formation of chlorine radicals.
To explain how chlorine radicals are formed from CFCs, state the reaction: CCl3F → Cl• + CCl2F. Here, the C-Cl bond breaks, producing a chlorine radical. This radical is crucial for ozone depletion.
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