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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What gas is evolved when ammonium ions are tested with NaOH?
💡 Hint: It's the same gas with a strong smell, often used in cleaners.
Question 2
Easy
What color precipitate is formed when copper ions react with NaOH?
💡 Hint: Think of the color of the ocean!
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is released upon heating ammonium ions with NaOH?
- Carbon Dioxide
- Oxygen
- Ammonia
💡 Hint: It's a gas with a strong smell.
Question 2
True or False: A green precipitate indicates the presence of Cu²⁺.
- True
- False
💡 Hint: Remember the color of cations' precipitates!
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have a solution that may contain Cu²⁺, Fe²⁺, and Zn²⁺. Outline a step-by-step procedure to identify which cation(s) are present.
💡 Hint: Identify by precipitation colors methodically.
Question 2
Design an experiment to test a solution suspected of containing Fe³⁺ ions, detailing the expected observations.
💡 Hint: Focus on what happens in response to the reagents.
Challenge and get performance evaluation