Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Two separate tests are carried out on separate solutions of compound X. 1 When aqueous sodium hydroxide is added, a green precipitate is produced and this dissolves in excess aqueous sodium hydroxide. 2 When dilute nitric acid and aqueous silver nitrate are added, a white precipitate is formed. What is compound X?

  • Achromium(III) carbonate
  • Bchromium(III) chloride
  • Ciron(II) carbonate
  • Diron(II) chloride

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