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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a reducing agent?
💡 Hint: Think about the transfer of electrons in chemical reactions.
Question 2
Easy
Provide an example of a reaction where hydrogen acts as a reducing agent.
💡 Hint: Consider metal oxides and hydrogen's role.
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 the role of hydrogen in the reaction CuO + H₂ → Cu + H₂O?
- It acts as an oxidizing agent
- It acts as a reducing agent
- It acts as a catalyst
💡 Hint: Think about what happens to the oxygen in the reaction.
Question 2
True or False: Hydrogen is a reducing agent because it gains oxygen.
- True
- False
💡 Hint: How does a reducing agent function?
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Explain the differences in environmental impact when using hydrogen versus carbon as reducing agents in metal extraction.
💡 Hint: Consider the by-products of both processes.
Question 2
Given the equation Fe₂O₃ + 3H₂ → 2Fe + 3H₂O, calculate the moles of hydrogen needed to reduce 0.5 moles of iron(III) oxide.
💡 Hint: Use the stoichiometry from the balanced equation.
Challenge and get performance evaluation