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 chromium in potassium dichromate?
💡 Hint: Think about how chromium is often found in compounds.
Question 2
Easy
What color is potassium permanganate?
💡 Hint: Recall the color associated with this compound.
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 manganese in potassium permanganate?
- +5
- +6
- +7
💡 Hint: Recall the state and properties of this transition metal.
Question 2
True or False: Potassium dichromate is typically orange-red in color.
- True
- False
💡 Hint: Think about the color observed in its typical applications.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an experiment to compare the oxidizing power of potassium dichromate with potassium permanganate in an acidic solution.
💡 Hint: Consider what factors you'd need to control in your experiment.
Question 2
Explain why potassium permanganate is more effective as an oxidizing agent in neutral conditions than potassium dichromate.
💡 Hint: Think about how different pH levels can affect chemical reactivity.
Challenge and get performance evaluation