The Reaction Between Lead Nitrate and Potassium Iodide is an Example of

Q. The reaction between Lead Nitrate and Potassium Iodide is an example of______.

Answer:- Precipitation reaction

Explanation: A precipitation reaction is one that occurs when lead nitrate reacts with potassium iodide. Lead nitrate forms Lead iodide and Potassium nitrate when it interacts with potassium iodide.

AgNO₃(aq) + KCl(aq) → AgCl(s) + KNO₃(aq) 

The reaction described above is also a double displacement reaction.

Information we get from the above reaction:

• Iodide ion displaces nitrate from lead nitrate and nitrate displaces iodine from potassium iodide when aqueous lead nitrate is introduced to potassium iodide. As a result, two new products are formed: potassium nitrate and lead iodide. This is a twofold displacement reaction in operation.

• In addition, the resulting items have an unusual colour. Potassium nitrate forms a white colour, while lead nitrate forms a yellow colour.

• The precipitate formed is the compound lead iodide (PbI₂). The presence of yellow lead iodide particles in the reaction mixture shows that a chemical transition has occurred.

Precipitation reaction:

A precipitation reaction is a chemical reaction that forms precipitates in an aqueous solution. The precipitate is the insoluble salt that precipitates out of the solution, hence the reaction’s name. When two solutions containing different salts are combined, a cation/anion pair creates an insoluble salt in the resulting combined solution. Another case in point is:

The precipitation of a white precipitate, silver chloride (AgCl), is observed when aqueous silver nitrate AgNO₃ is introduced to a solution containing potassium chloride (KCI):

AgNO₃(aq) + KCl(aq) → AgCl(s) + KNO₃(aq)