Double Displacement Reactions-Class 10 NCERT

Double Displacement Reactions- Chemical reactions in which there can be an exchange of ions between the reactants are called double displacement reactions.

Double Displacement Reaction

1. What is the general equation of a double displacement reaction?

• A + B → C + D
• AB + CD → AD + CB
• AB → A + B
• A + B → AB

2. In a double displacement reaction, which two ions exchange places?

• Two anions
• Two cations
• One cation and one anion
• None of the above

3. Which of the following is a product of a double displacement reaction between NaCl and AgNO₃?

• NaNO₃ and AgCl
• NaNO₃ and Ag₂Cl
• NaCl and AgNO₃
• None of the above

4. A double displacement reaction is also called a:

• Precipitation reaction
• Neutralization reaction
• Both A and B
• Decomposition reaction

5. Which of the following can occur as a result of a double displacement reaction?

• Gas formation
• Precipitate formation
• Both A and B
• None of the above

6. In a double displacement reaction between HCl and NaOH, what is the product formed?

• NaCl and H₂O
• NaOH and HCl
• Na₂O and H₂O
• None of the above

7. Which of the following is NOT an example of a double displacement reaction?

• BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl
• NaOH + HCl → NaCl + H₂O
• Zn + CuSO₄ → ZnSO₄ + Cu
• HCl + AgNO₃ → AgCl + HNO₃

8. The formation of a precipitate is commonly seen in:

• Decomposition reaction
• Double displacement reaction
• Combination reaction
• All of the above

9. What happens when silver nitrate (AgNO₃) reacts with sodium chloride (NaCl)?

• Formation of sodium nitrate and chlorine gas
• Formation of silver chloride and sodium nitrate
• Formation of silver metal and chlorine gas
• No reaction

10. Which of the following ions typically forms a precipitate in double displacement reactions?

• Sodium (Na⁺)
• Chloride (Cl⁻)
• Sulfate (SO₄²⁻)
• Lead (Pb²⁺)

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