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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Assign the oxidation state of sulfur in H2SO4.
💡 Hint: Recall how to sum oxidation states in compounds.
Question 2
Easy
Is the reaction 2H2 + O2 → 2H2O a redox reaction?
💡 Hint: Check who loses and gains 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 is the oxidation state of chlorine in HCl?
- -1
- 0
- +1
💡 Hint: Refer to the common oxidation states of halogens.
Question 2
True or False: All redox reactions involve oxygen.
- True
- False
💡 Hint: Consider examples involving metals.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the oxidation numbers in H3PO4 and justify your process.
💡 Hint: Start with the known oxidation states of H and O to work backwards.
Question 2
If 2Fe + 3Cl2 → 2FeCl3 is a redox reaction, identify all oxidized and reduced species.
💡 Hint: Check the oxidation states before and after the reaction.
Challenge and get performance evaluation