Question

what do you mean by precipitation reaction ? by giving example​

Answer 1

Answer:

Precipitation is rain, snow, sleet, or hail — any kind of weather condition where something's falling from the sky.

Precipitation has to do with things falling down, and not just from the sky. It's also what happens in chemical reactions when a solid settles to the bottom of a solution. If you have hard water where you live, you might find lime deposits — a flaky white crust — on your faucets and showerhead. That's caused by precipitation of the minerals in the water. The minerals settle out — they precipitate — and clog the pipes.

Answer 2

AnswEr :

• A chemical reaction in which two compounds in their aqueous state react to form an insoluble salt as one of the products, is known as a precipitation reaction.

Examples :

• BaCl₂ (aq) + Na₂SO₄ (aq) ➞ BaSO₄(s) white ppt. + 2NaCl (aq)

• CuSO₄ (aq) + H₂S (g) ➞ CuS(s) black ppt. + H₂SO₄ (aq)

Precipitation is the formation of a solid (insoluble product),

• either when two solutions are mixed,
• or when a gas is bubbled into a solution.

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