What is meant by precipitation reaction? Explain it with examples… - Vidyadip

Question

What is meant by precipitation reaction? Explain it with examples.

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Answer

Chemical reaction in which an insoluble precipitate (solid) formed is known as precipitation reaction.
For example, reaction between $Ba ^{2+}$ ions of $BaCl _2$, and $SO _4{ }^{2-}$ ions of $Na _2 SO _4$ gives white precipitate of $BaSO _4$, which is insoluble in water.

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