Why do the reactants nai(sodium iodide) and agno3(silver nitrate) indicate the reaction of double displacement?

Explanations:- If a reaction looks like, then it is called double displacement reaction as two ions are exchanged in this reaction.

When sodium iodide and silver nitrate are added then a double displacement reaction takes place where iodide ion goes from sodium to solver and nitrate ion from silver to sodium. A precipitate of silver iodide forms in this reaction.