Give examples of double displacement reaction

Answer:

A displacement reaction is one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when the iron is added to a copper sulphate solution, it displaces the copper metal.

A + B-C → A-C + B

The above equation exists when A is more reactive than B.

A and B have to be either:

• Halogens where C indicates a cation.
• Different metals wherein C indicates an anion

Double displacement reaction

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds. Many double displacement reactions occur between ionic compounds that are dissolved in water. A double replacement reaction is represented by the general equation.

Examples of double displacement reaction

Here are some examples of double displacement reaction:

1. AgNO 3 + NaCl → AgCl + NaNO₃
2. 2NaCl + CaSO₄ → Na₂SO₄+ CaCl₂
3. H₂SO₄ + 2LiOH ⇌ Li₂SO₄ + 2H₂O
4. AgNO₃ + HCl ⇌ AgCl + HNO₃
5. Pb(NO₃)₂ + 2NaCl ⇌ 2NaNO₃+ PbCl₂
6. HCl + NaOH → NaCl + H₂O
7. Al₂(SO₄)₃ + 6NH₄OH → 2Al(OH)₃ + 3(NH₄)₂SO₄

Articles to Explore:

1. What is a double displacement reaction?
2. Which of the following double displacement reaction? (a)Pb+ CuCl₂ → PbCl₂ + Cu (b) H₂ + Cl₂ → 2HCl (c) BaCl₂ + k₂SO₄ → BaSO₄ +2KCl