The correct answer is Double displacement reaction.Concept:Chemical reaction:It is a process in which one or more substances, the reactants, are converted to one or more different substances, the products.A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.Explanation:Double displacement reaction: It is a chemical reaction in which two compounds react and exchange their ions forming new products. This reaction often results in the formation of an insoluble compound called a precipitate. Such reactions are represented by equations of the following form: A+B- + C+D- ? A+D- + B-C+?In the given chemical reaction: NaCl(aq) + AgNO3(aq) ? NaNO3(aq) + AgCl(s)The reactants NaCl and AgNO3 have exchanged their ions to form NaNO3 and AgCl. Thus, it is an example of a double displacement reaction.?Additional InformationTypes of Chemical Reactions:Combination reaction:Two or more elements or compounds combine together to form a single compound.Such reactions are represented by equations of the following form: A + B ? AB.Decomposition reaction:The opposite of a combination reaction, a complex molecule breaks down to make simpler ones.Such reactions are represented by equations of the following form: AB ? A + B.Displacement reaction:One element takes place with another element in the compound.Such reactions are represented by equations of the following form: A + BC ? AC + B.Redox reaction:It is a reaction in which one species is reduced and the other is oxidized. Reduction means losing Oxygen or gaining hydrogen Oxidation means gaining oxygen or losing hydrogen.