Practice Activity: Rusting of Iron - 2.5 | 2. Physical and Chemical Changes | ICSE Class 8 Chemistry
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What substance is formed when iron rusts?

💡 Hint: Think of the color of rust.

Question 2

Easy

Name one method to prevent rusting.

💡 Hint: Consider what we discussed about covering surfaces.

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 rust?

  • Iron
  • Iron oxide
  • Water

💡 Hint: It's something you see forming on old iron.

Question 2

Rusting is a reversible change.

  • True
  • False

💡 Hint: Think about overcoming the rust once it's formed.

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Challenge Problems

Push your limits with challenges.

Question 1

A new type of paint claims to stop rusting for ten years. Conduct a study to compare the rusty nails exposed to air with regular painted nails after five years. What will you observe?

💡 Hint: Think about how long rust takes to form under normal conditions.

Question 2

Analyze the role of galvanization in preventing rusting and compare it to other methods like oiling.

💡 Hint: Consider how long each method lasts against the elements.

Challenge and get performance evaluation