A solution of potassium chloride when mixed with silver nitrate solution, an insoluble white substance is formed. Write the chemical reaction involved and also mention the type of chemical reaction?

Answer:

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

This is a double displacement and precipitation reaction.

Double displacement reactions

Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions. In double replacement reactions, the positive ions exchange negative ion partners. A double replacement reaction is represented by the general equation.

AB + CD → AD + CB

Precipitation reaction

A precipitation reaction is a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt which is called precipitates.

  • Precipitation reactions occur when cations and anions in an aqueous solution combine to form an insoluble ionic solid called a precipitate.
  • A precipitate is a solid that forms out of solution.

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