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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does oxidation mean?
💡 Hint: Think about what happens to electrons.
Question 2
Easy
What is a mnemonic to help remember oxidation and reduction?
💡 Hint: It’s about the electrons!
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 process does oxidation refer to?
- Gaining electrons
- Losing electrons
- Neither
💡 Hint: Think about OIL RIG.
Question 2
True or False: Reduction occurs when an element loses electrons.
- True
- False
💡 Hint: Remember the meanings of oxidation and reduction.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A complex redox reaction involves Cr₂O₇²⁻ + C₂O₄²⁻ → Cr³⁺ + CO₂. Assign oxidation states and identify all oxidized and reduced substances.
💡 Hint: Pay attention to the oxidation states before and after the reaction.
Question 2
Consider the reaction of hydrogen peroxide (H₂O₂) decomposing into water (H₂O) and oxygen (O₂). Identify the oxidation states of hydrogen and oxygen and determine the changes.
💡 Hint: How does the oxidation state of oxygen change?
Challenge and get performance evaluation