Question

What do you mean by a precipitation reaction?
Explain by giving examples.

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Answer 1

•the reaction in which precipitate forms as a product is called precipitation reaction.

•example -

2NaOH + MgCl2 --> 2NaCl + Mg(OH)2

NiCl2 + Na2CO3 --> NiCO3 + 2NaCl

hope this helps

Answer 2

$<i> A reaction in which an insoluble solid (called precipitate) is formed is called a precipitation reaction.For Example:</p><p>Na2CO3 (aq) + CaCl2 (aq) → CaCO3 (s) + 2NaCl (aq)</p><p>Sodium Carbonate + Calcium Chloride → Calcium Carbonate + Sodium Chloride</p><p>In this reaction, calcium carbonate is obtained as a precipitate. Hence, it is a precipitation reaction.$