Question

What is double displacement reaction?​

Answer 1

Answer:

where two compounds react, and the positive ions and the negative ions of two reactants takes places forming two compounds or products

Answer 2

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Double Displacement Reaction

It is a reaction in which there is an exchange of radicals between two ionic compounds leading to the formation of new chemical compounds .

Generally, this also known as double decomposition reaction.

For example :

$\color{red}{Ba{Cl}_{2}+Na{SO}_{4} ------> Ba{SO}_{4} + NaCl}$

Mostly,

In a double Displacement Reaction a semi solid precipitate will be formed.

This is because the acids and bases try to neutralize themselves leading to the formation of salts .

These salts are nothing but the precipitate.