A colourless aqueous solution of J contains cations and chloride ions. When separate portions of the solution are tested, each produces a white precipitate with a few drops of aqueous sodium hydroxide and with a few drops of aqueous ammonia. Which statement about J is correct?
- AThe cation in J must be $\text{Al}^{3+}$.
- BThe cation in J must be $\text{Fe}^{2+}$.
- CWhen dilute nitric acid and aqueous barium nitrate are added to an aqueous solution of J, a white precipitate is formed.
- DWhen dilute nitric acid and aqueous silver nitrate are added to an aqueous solution of J, a white precipitate is formed.