What is the difference between displacement and double displacement reactions? Write equations for these reactions.
In a displacement reaction, a more reactive element replaces a less reactive element from a compound.
For Example: CuSo4 (aq) + Zn (s) → ZnSO4 (aq) + Cu (s)
In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
- A displacement reaction is the one when a more reactive substance displaces a less reactive one from its salt solution whereas a double displacement reaction is the one where a mutual exchange of ions happens between two compounds.
- In a displacement reaction only a single displacement takes place whereas in the double displacement reaction, as the name suggests two displacement takes place between the molecules.
- Displacement reaction
- Double displacement reaction
|Displacement Reaction||Double Displacement Reaction|
|Displacement reaction is a chemical reaction in which displacement of a metal from its solution takes place by the other metal that is more reactive than the metal being displaced.||Double displacement reaction is a chemical reaction in which exchange of ions between both the reactants takes place.|
Zn + CuSO4 → ZnSO4 + Cu
Here, Zinc (Zn), which is more reactive than Cu, displaces copper from its solution.
Na2SO4 + BaCl2 → BaSO4 + 2NaCl
Here, both Na2SO4 and BaCl2 exchange their ions.