10. Differentiate between displacement reaction and double displacement reaction with one
example
How is reaction
Answers
Explanation:
The reaction in which an atom or a set of atoms are displaced by another atom in a molecule is called displacement reaction. For instance, when Iron is added to a copper sulfate solution, it displaces the copper metal.
A + B – C → A – C + B
The above equation exists when A is more reactive than B.
The reaction in which two atoms or a group of atoms are displaced by another atom in a molecule is called a double displacement reaction.
A-B + C-D → A-C + B-D
A and B have to be either:
Halogens where C indicates a cation.
Different metals wherein C indicates an anion.
The difference between displacement reaction double displacement reaction is tabulated below:
Single Displacement reaction Double displacement reactionIn a displacement reaction, a more reactive element replaces a less reactive element from a compound.In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.In a displacement reaction, one displacement takes place.
A + BX → AX + B
In a double displacement reaction, two displacements take place to complete the reaction.
AB + CD → AC + BD
Change in color takes place with no precipitate forms.Precipitate is formed.Metals react with the salt solution of another metal.Salt solutions of two different metals react with each other.Examples:
2KI + Cl2 → 2KCl + I2 is a displacement reaction.
CuSO4 + Zn → ZnSO4 + Cu is also a displacement