Question

what is double displacement with example

Answer 1

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DOUBLE DISPLACEMENT :
This is a type of chemical change in which two compounds in a solution ready to form two new compounds by mutual exchange of two radicals . DOUBLE displacement reaction is also known as double decomposition reaction.
These reactions are of two types:

PRECIPITATION :
A chemical reaction in which two compounds in their aqueous state react to form an insoluble salt called precipitate as one of their products.
BaCl2 + Na2SO4 ---> BaSO4 +NaCl
AgNO3 +HCL -----> AgCl +HNO3

NEUTRALIZATION :
The reaction between an acid and a base that forms salt and water.
NaOH +HCl --->NaCl + H2O

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