Question

Define double displacement reaction with example

Answer 1

It is a reaction in which ions of different compounds get exchanged when they react.
Na2SO4 + BaCl2 - BaSo4 + 2NaCl

Answer 2

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Displacement reaction :-

Such reactions in which two compounds exchange their ions are double displacement reactions.

For example :- BaCl2 (aq) + NaSO4 (aq) → BaSO4 + 2NaCl

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