Question

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

Answer 1

Displacement reaction:

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.

Zn+2HCl⟶ZnCl

2

+H

2

Double displacement reaction:

A type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products is called double displacement reactions.

MgCl

2

+2KOH⟶Mg(OH)

2

+2KCl

Answer 2

ANSWER

In displacement reaction a more reactive metal displace less reactive element .

And

In a double displacement reaction there is exchange of ions b/w the reactants.

Equations of Displacement reaction may

be:-

• Zn(s) + CuSO4(aq) -----> ZnSO4(aq) + cu(s)

• Fe(s) +CuSO4(aq) ------> FeSO4(aq) + cu(s)

Equation of Double Displacement reaction may be:-

• Bacl2(aq) +Na2SO4(aq) -----> BaSO4(s) +2NaCl

• Na2SO4(aq) + BaCl2(aq) -----> 2NaCl (aq)+BaSO4