Chile saltpetre, $\text{NaNO}_3$, has sodium iodide present as an impurity. Aqueous silver nitrate is added to an aqueous solution of Chile saltpetre. After this, concentrated aqueous ammonia is added. What observations would be seen?
- Ano precipitate; no further reaction
- Bno precipitate; precipitate forms
- Cprecipitate forms; precipitate dissolves
- Dprecipitate forms; precipitate remains