Science, asked by ricky56, 1 year ago

what do you mean by precipitation reaction explain by giving examples.

Answers

Answered by Socrates1
2
The reactions in which a precipitate is formed are called precipitation reactions. Examples:

1. Na2SO4 + BaCl2 —> BaSO4 + 2NaCl



In this reaction, BaSO4 is obtained as precipitate.

2. Na2CO3 + CaCl2 —> CaCO3 + 2NaCl

Here calcium carbonate is obtained as precipitate.

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Answered by Kalpana1922
0
Those reactions in which two compounds react to form insoluble compound, which is called precipitate, are called precipitation reaction. E.g.
When solutions of silver nitrate and sodium chloride are mixed, white precipitate of silver chloride is formed.

AgNO3(aq) +NaCl (aq) --> AgCl (s) + NaNO3 (aq)

On adding dilute HCl to the aqueous solution of lead nitrate, precipitate of lead chloride is formed.

Pb(NO3)2 (aq) +2HCl --> PbCl2 (s) +2HNO3 (aq)
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