Some test outcomes for an aqueous solution of substance X are given below. 1. When aqueous silver nitrate is added, a cream precipitate forms. 2. On addition of aqueous sodium hydroxide, a green precipitate is obtained, and this dissolves in excess alkali. 3. When aqueous ammonia is added, a green precipitate forms, and it remains insoluble in excess ammonia. Which substance is X?
- Achromium(III) bromide
- Bchromium(III) chloride
- Ciron(II) bromide
- Diron(II) chloride