Chemistry 0620 · IGCSE · Ions and ionic bonds

Ions and ionic bonds — practice question

Chromium produces the compound chromium(III) sulfate. What is indicated by the (III)?

  • Athe charge on a sulfate ion
  • Bthe number of chromium ions combined with one sulfate ion
  • Cthe number of sulfate ions combined with one chromium ion
  • Dthe oxidation state of chromium

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