The findings from several tests on an aqueous solution of substance X are shown below. 1. A cream precipitate forms when aqueous silver nitrate is added. 2. When aqueous sodium hydroxide is added, a green precipitate is formed that dissolves in excess alkali. 3. When aqueous ammonia is added, a green precipitate is formed that remains insoluble in excess ammonia. Which substance is X?
- Achromium(III) bromide
- Bchromium(III) chloride
- Ciron(II) bromide
- Diron(II) chloride