What type of reaction is characterized by the formation of a precipitate?

What type of reaction is characterized by the formation of a precipitate?

• A. Oxidation-reduction reaction
• B. Synthesis reaction
• C. Single displacement reaction
• D. Double displacement reaction

Answer: (D)

The type of reaction characterized by the formation of a precipitate is a double displacement reaction. In this type of reaction, two compounds exchange ions or elements to form new compounds. Often, when these compounds react in solution, one of the products is insoluble in water, leading to the formation of a solid precipitate that separates from the solution. For instance, when solutions containing barium chloride and sodium sulfate are mixed, barium sulfate precipitates out of the solution, illustrating the double displacement mechanism. This reaction is significant as it is used in various applications, including analytical chemistry to identify the presence of specific ions through precipitate formation.

The type of reaction characterized by the formation of a precipitate is a double displacement reaction. In this type of reaction, two compounds exchange ions or elements to form new compounds. Often, when these compounds react in solution, one of the products is insoluble in water, leading to the formation of a solid precipitate that separates from the solution.

For instance, when solutions containing barium chloride and sodium sulfate are mixed, barium sulfate precipitates out of the solution, illustrating the double displacement mechanism. This reaction is significant as it is used in various applications, including analytical chemistry to identify the presence of specific ions through precipitate formation.