Question

what is precipitation reaction ?explain with examples

Answer 1

Answer:

those reaction in which precipate (un soluble substance) is formed known as precipitation reaction.

Examples are..

BaCl2+Na2So4=BaSo4 + 2Nacl.

(white ppt.)

pb(No3)2+2kl=pbI2 + 2kNo3

(yellow ppt.)

Answer 2

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