Theory

Textbook Questions

1. Reaction of metals with water

Difficulty: easy

3
2. Iron nail in different conditions

Difficulty: hard

5

Practice Questions

1. Corrosion and prevention

Difficulty: easy

2
2. Reaction of metals with water

Difficulty: easy

2
3. Rusting and its prevention

Difficulty: medium

2
4. Effect of water on materials

Difficulty: medium

2
5. Corrosion

Difficulty: medium

1
6. Reaction of Metals with Water

Difficulty: hard

3
7. Rusting

Difficulty: hard

4

Teacher manual