examples of displacement reaction

 Certainly, Mayank! Below is a complete list of all Displacement Reaction examples from Chapter 1: Chemical Reactions and Equations of the CBSE Class 10 Science textbook. These are drawn from textbook content, activities, and additional related reactions that help reinforce the concept.

🔁 All Displacement Reaction Examples

(Class 10 Science – Chapter 1: Chemical Reactions and Equations)

🔷 1. Iron and Copper Sulphate

(Activity 1.9)

Fe (s)+CuSO4(aq)→FeSO4(aq)+Cu (s)\text{Fe (s)} + \text{CuSO}_4 (aq) \rightarrow \text{FeSO}_4 (aq) + \text{Cu (s)}

  • Observation: Iron nail turns brown, solution fades from blue to green

  • Type: Metal displacement

🔷 2. Zinc and Copper Sulphate

Zn (s)+CuSO4(aq)→ZnSO4(aq)+Cu (s)\text{Zn (s)} + \text{CuSO}_4 (aq) \rightarrow \text{ZnSO}_4 (aq) + \text{Cu (s)}

  • Zinc, being more reactive, displaces copper

  • Solution changes colour from blue to colourless

🔷 3. Lead and Copper Chloride

Pb (s)+CuCl2(aq)→PbCl2(aq)+Cu (s)\text{Pb (s)} + \text{CuCl}_2 (aq) \rightarrow \text{PbCl}_2 (aq) + \text{Cu (s)}

  • Lead displaces copper from its salt solution

🔷 4. Magnesium and Hydrochloric Acid

Mg (s)+2HCl(aq)→MgCl2(aq)+H2(g)\text{Mg (s)} + 2\text{HCl} (aq) \rightarrow \text{MgCl}_2 (aq) + \text{H}_2 (g)

  • Hydrogen gas evolves

  • Magnesium replaces hydrogen in acid

🔷 5. Zinc and Hydrochloric Acid

Zn (s)+2HCl(aq)→ZnCl2(aq)+H2(g)\text{Zn (s)} + 2\text{HCl} (aq) \rightarrow \text{ZnCl}_2 (aq) + \text{H}_2 (g)

  • A classic acid + metal reaction

  • Bubbles of H₂ gas observed

🔷 6. Iron and Sulphuric Acid

Fe (s)+H2SO4(aq)→FeSO4(aq)+H2(g)\text{Fe (s)} + \text{H}_2\text{SO}_4 (aq) \rightarrow \text{FeSO}_4 (aq) + \text{H}_2 (g)

  • Iron displaces hydrogen from sulphuric acid

🔷 7. Copper and Silver Nitrate (can be given as a contrast)

Cu (s)+2AgNO3(aq)→Cu(NO3)2(aq)+2Ag (s)\text{Cu (s)} + 2\text{AgNO}_3 (aq) \rightarrow \text{Cu(NO}_3)_2 (aq) + 2\text{Ag (s)}

  • Copper displaces silver from its salt

  • Often used in photographic reactions

🔷 8. Chlorine and Potassium Bromide (Non-metal displacement)

Cl2(g)+2KBr(aq)→2KCl(aq)+Br2(l)\text{Cl}_2 (g) + 2\text{KBr} (aq) \rightarrow 2\text{KCl} (aq) + \text{Br}_2 (l)

  • Chlorine, being more reactive, displaces bromine

📘 Summary Table: Displacement Reactions

Reactants Products Type
Fe + CuSO₄ FeSO₄ + Cu Metal displaces metal
Zn + CuSO₄ ZnSO₄ + Cu Metal displaces metal
Pb + CuCl₂ PbCl₂ + Cu Metal displaces metal
Mg + HCl MgCl₂ + H₂ Metal displaces hydrogen
Zn + HCl ZnCl₂ + H₂ Metal displaces hydrogen
Fe + H₂SO₄ FeSO₄ + H₂ Metal displaces hydrogen
Cu + AgNO₃ Cu(NO₃)₂ + Ag Metal displaces metal
Cl₂ + KBr KCl + Br₂ Non-metal displaces non-metal

🧠 CBSE Board Tip:

Displacement reactions commonly appear in:

  • Assertion-Reason type questions

  • Reactivity series problems

  • Practical-based MCQs

🎤 Closing Line for Class:

"Whether it’s iron in a beaker or chlorine in a bottle, displacement reactions show us that reactivity decides who stays and who goes!"

Would you like this compiled into a printable chart, a student worksheet, or a digital matching activity?

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