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 happens to the color of the copper(II) sulphate solution when an iron nail is dipped into it?
💡 Hint: Think about what happens during the reaction.
Question 2
Easy
What does the reddish-brown substance on the iron nail represent?
💡 Hint: Consider what metal is present in the copper sulphate.
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 color of the copper sulphate solution before placing the iron nail in it?
- Green
- Blue
- Colorless
💡 Hint: Recall how the solution looks initially.
Question 2
True or False: Copper ions are more reactive than iron.
- True
- False
💡 Hint: Think about the reactivity series.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An iron nail is dipped into a mixture of copper sulphate and zinc sulphate solution. Predict the outcome and explain why?
💡 Hint: Reference the reactivity series to analyze the order of metals.
Question 2
If the experiment is repeated with a piece of gold instead of iron, what will happen? Discuss your reasoning based on reactivity.
💡 Hint: Just like the previous problem, check the metal's position in the reactivity series.
Challenge and get performance evaluation