Difference between Single Displacement Reaction and Double Displacement Reaction
The following are the differences between a single displacement reaction and a double displacement reaction:
Single displacement reaction | Double displacement reaction |
When a highly active element drives out a less active one from a molecule, the reaction is called a displacement reaction. | A twofold displacement reaction is one in which there is an ion exchange between the reactants. |
The general reaction is, A + B - C → A - C + B | The general reaction is, AB + CD → AC + CB |
Example: Reaction between Copper sulphate and Zinc granules | Example: Reaction between Lead nitrate and Potassium iodide |
When zinc granules are combined with copper sulphate, which has a blue colour, the result is copper metal and zinc sulphate. | Potassium nitrate and lead iodide are the byproducts of the reaction between potassium iodide and lead nitrate solution. |
Copper is displaced from the copper sulphate solution by zinc because zinc is more reactive than copper. | Since ion exchange occurs between the two reactants. Thus, this serves as an illustration of a twofold displacement reaction. |
The chemical reaction that balances is as follows: Zn (s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) | Here is the chemical reaction: 2KI(aq) + Pb(NO3)2 (aq) → 2KNO3(aq) + PbI2(s) |
Summary:
What is the difference between a single displacement reaction double displacement reaction?
A more active element displaces a less active element from its compound in a single displacement reaction, whereas ions are exchanged between reactants in a double displacement reaction.
Comments
write a comment