Metals and Non-metals | Class 10 | Activity 3.12 with solution

Metals and Non-metals | Activities in Text Book with Solution

Activity 3.12 

Take a clean wire of copper and an iron nail.

Put the copper wire in a solution of iron sulphate and the iron nail in a solution of copper sulphate taken in test tubes (Fig. 3.4).

Fig. 3.4

Record your observations after 20 minutes.

✅ Answer: After 20 minutes, it is observed that blue CuSO₄ solution turns green.

In which test tube did you find that a reaction has occurred?

✅ Answer: Test tube containing CuSO₄ solution.

On what basis can you say that a reaction has actually taken place?

✅ Answer: The blue colour of CuSO₄ starts fading.

Can you correlate your observations for the Activities 3.9, 3.10 and 3.11?

✅ Answer: Yes. In those activities, it is found that Iron is more reactive than copper. It displaces Cu from CuSO₄ to form FeSO₄.

Write a balanced chemical equation for the reaction that has taken place.

✅ Answer: Fe(s) + CuSO₄(aq) → FeSO₄(aq) + Cu(s)

Name the type of reaction.

✅ Answer: This is a displacement reaction. i.e., reactive metals displace less reactive metals from their compounds in solution or molten form.

• Activity 3.1
• Activity 3.2
• Activity 3.3
• Activity 3.4
• Activity 3.5
• Activity 3.6
• Activity 3.7
• Activity 3.8
• Activity 3.9
• Activity 3.10
• Activity 3.11
• Activity 3.12
• Activity 3.13
• Activity 3.14

👉 Activities from Other Chapters

👉 Class 10: Notes, Presentations, Questions