Chemistry 9701 · AS & A Level · Group 2

Group 2 — practice question

An ore includes magnesium carbonate and barium carbonate. A portion of the ore is dissolved in nitric acid. How can this solution be treated to obtain a magnesium compound and a separate barium compound?

  • AAdd HCl(aq), filter off the solid barium chloride.
  • BAdd HCl(aq), filter off the solid magnesium chloride.
  • CAdd $\text{H}_2\text{SO}_4$(aq), filter off the solid barium sulfate.
  • DAdd $\text{H}_2\text{SO}_4$(aq), filter off the solid magnesium sulfate.

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