Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the oxidation state of Na in NaCl?
💡 Hint: Think about the charge of Na.
Question 2
Easy
Determine the oxidation state of O in water (H₂O).
💡 Hint: Recall that hydrogen is typically +1.
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 a monatomic ion?
- Charge of the ion
- Zero
- Charge of the element
💡 Hint: Think about what a monatomic ion consists of.
Question 2
Is the oxidation state of oxygen in H₂O -2?
- True
- False
💡 Hint: Recall the general rules for oxygen.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the oxidation states of all elements in the compound K₂Cr₂O₇.
💡 Hint: Use the sum of the oxidation states to ensure overall neutrality.
Question 2
Consider the compound NH₄Cl. What are the oxidation states of nitrogen and chlorine?
💡 Hint: Analyze the charges from the ammonium and chloride ions.
Challenge and get performance evaluation