Question

What is double displacement reaction? Give 2 examples............​

Answer 1

Explanation:

heyyy mate

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

for instance cations of first element react with anion of second element and anion of first element react with cation of second element

here are some examples

Na2S+2HCl→2NaCl+H2S

F₂ + 2NaCl → 2NaF + Cl₂,

hope it helps

Answer 2

Explanation:

In a double displacement reaction interchange of ions between two compounds takes place. This type of reaction usually results in the formation of one insoluble substance (as precipitate).

AgNO3 + NaCl = AgCl (s) + NaNO3

Pb(NO3)2 + 2KI = PbI2 (s) + 2KNO3

BaCl2 + Na2SO4 = BaSO4 (s) + 2NaCl

Al2(SO4)3 + 6NH4OH = 2Al(OH)3 (s) + 3(NH4)2SO4

Double decomposition is generally a non-redox reaction.