Question

The chemical equation BaCl₂ + Na₂SO₄→BaSO ₄ + 2NaCl is an example for which type of the following chemical reactions? 

• A. Displacement
• B. Combination
• C. Decomposition
• D. Double-displacement

Answer 1

The Correct Option is D

The given chemical equation is:
BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl 

In this reaction:
- Barium (Ba²⁺) from BaCl₂ combines with SO₄²⁻ from Na₂SO₄ to form BaSO₄ (a precipitate).
- Sodium (Na⁺) and Cl⁻ ions combine to form NaCl.

This is a classic example of a double-displacement reaction, where ions are exchanged between the reacting compounds.

Answer 2

The given chemical equation is: \[ \text{BaCl}_2 + \text{Na}_2\text{SO}_4 \rightarrow \text{BaSO}_4 + 2\text{NaCl} \] This is an example of a Double-displacement reaction. In a double-displacement reaction, the cations and anions of two reactants exchange places to form new products. In this case, the Ba²⁺ ion from BaCl₂ combines with the SO₄^2- ion from Na₂SO₄ to form BaSO₄, and the Na⁺ ion from Na₂SO₄ combines with the Cl^- ion from BaCl₂ to form NaCl. Thus, the correct answer is Double-displacement.