Question

13. What is the difference between displacement and double displacement reactions?
Write equations for these reactions.

Answer 1

Answer:

In 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 form new compounds.

2KI + Cl2 → 2KCl + I2 is a displacement reaction.

CuSO4 + Zn → ZnSO4 + Cu is also a displacement reaction.

Na2SO4 + BaCl2 → BaSO4 + 2NaCl is a double displacement reaction.

Explanation:

In a displacement reaction, one displacement takes place.Salt solutions of two different metals react with each other.

Answer 2

Explanation:

The reaction in which ion of less reactive element in a compound is taken by another more reactive element by formation of it's own ions is called displacement reaction

The reaction in which the ions in the reactants are exchanged to form a precipitate are called double displacement reaction.