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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What happens to electrons in oxidation?
💡 Hint: Think about the meaning of oxidation.
Question 2
Easy
Which process involves gaining electrons?
💡 Hint: Remember, reduction is 'gain'.
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 does a redox reaction always involve?
- A transfer of protons
- A transfer of neutrons
- A transfer of electrons
💡 Hint: Think about what is being transferred.
Question 2
When an element is oxidized, what happens to its oxidation state?
- True
- False
💡 Hint: Remember the definition of oxidation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Analyze the reaction 4Al + 3O₂ → 2Al₂O₃. Identify oxidized and reduced substances, and explain your reasoning.
💡 Hint: Track the changes in oxidation state for each atom.
Question 2
In the reaction Cr₂O₇²⁻ + 14H⁺ + 6e⁻ → 2Cr³⁺ + 7H₂O, identify the reducing agent and the products.
💡 Hint: Check which substance donates electrons and determine the products formed.
Challenge and get performance evaluation