Learning objective
Predict and explain halogen displacement reactions.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
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Flashcards
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Questions
Topic
Group 7(17), the halogens
Subtopic
Halogen trends and displacement
Study support
Understand this objective
Quick explanation
Predict and explain halogen displacement reactions
- This point belongs to Group 7(17), the halogens, especially Halogen trends and displacement.
- You need to be able to predict and explain halogen displacement reactions.
- The key ideas to know are halogen and displacement.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Halogen trends and displacement to exam-style questions, flashcards, and revision notes for Group 7(17), the halogens.
Quick student answer
Which of the following halogens can displace iodine from potassium iodide solution?
Direct answer
Chlorine can displace iodine from potassium iodide solution.
Key terms
- Displacement Reaction: A reaction where a more reactive element displaces a less reactive element from its compound.
- Reactivity Series: A list of elements ordered by their reactivity, with more reactive elements at the top.
Common trap
Confusing reactivity order: Remember that reactivity decreases down the group; chlorine is more reactive than bromine.
Related questions
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Flashcard prompts
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Flashcard 1 of 3
Revision tools
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Flashcards0 linked cards
Practice Questions0 linked questions
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Describe trends in electronegativity and boiling point down Group 7.
Halogen trends and displacement
- Explain the trend in oxidising ability of halogens.
Halogen trends and displacement
- Write ionic equations for halogen displacement reactions.
Halogen trends and displacement
- Describe tests for halide ions using silver nitrate and ammonia.
Halide ions and uses of chlorine
- Explain the use of chlorine in water treatment.
Halide ions and uses of chlorine