Formation of precipitate


 
 
Concept Explanation
 

Formation of precipitate

Formation of Precipitate:

Sometimes, when two solutions are mixed together, a solid gets separated from the solution. The solid thus separated is called the precipitate. Thus, precipitate is a ‘solid product’ which separates out from the solution during a chemical reaction. The chemical reaction between potassium iodide and lead nitrate is characterized by the formation of a yellow precipitate of lead iodide. Take lead nitrate solution in a test tube and potassium iodide solution in the other. Both lead nitrate and potassium iodide solutions are white in colour. On mixing these two, a colourless potassium nitrate solution and yellow precipitate of lead iodide are formed.

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Sample Questions
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Question : 1

When an aqueous solution of sodium sulphate is mixed with a solution of barium chloride, a ____________________ of barium sulphate is produced.

Right Option : B
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Question : 2

Which of the following are correct :

(a) The chemical between potassium iodide and lead nitrate is characterized by the formation of a yellow precipitate of lead iodide.

(b) When two solutions are mixed together, a solid gets separated from the solution,the solid separated is called the precipitate.

Right Option : C
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Question : 3

The chemical between potassium iodide and lead nitrate is characterized by the formation of a __________________________ of lead iodide. 

Right Option : A
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