Learning objective
Describe tests for halide ions using silver nitrate and ammonia.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Flashcards
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Questions
Topic
Group 7(17), the halogens
Subtopic
Halide ions and uses of chlorine
Study support
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Quick explanation
Describe tests for halide ions using silver nitrate and ammonia
- This point belongs to Group 7(17), the halogens, especially Halide ions and uses of chlorine.
- You need to be able to describe tests for halide ions using silver nitrate and ammonia.
- The key ideas to know are halide ion and silver nitrate.
- 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 Halide ions and uses of chlorine to exam-style questions, flashcards, and revision notes for Group 7(17), the halogens.
Quick student answer
What is the observation when silver nitrate solution is added to a solution containing chloride ions?
Direct answer
A white precipitate of silver chloride (AgCl) forms.
Key terms
- Silver Nitrate: A chemical compound (AgNO3) used to test for halide ions by forming precipitates.
- Precipitate: An insoluble solid that forms when two solutions react, often observed as a color change.
Common trap
Confusing the colors of precipitates: Remember that chloride gives a white precipitate, bromide gives a cream precipitate, and iodide gives a yellow precipitate.
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Revision notestopic notes
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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
- Predict and explain halogen displacement reactions.
Halogen trends and displacement
- Write ionic equations for halogen displacement reactions.
Halogen trends and displacement
- Explain the use of chlorine in water treatment.
Halide ions and uses of chlorine