Chemistry 9701 · AS & A Level · Group 2

Group 2 — practice question

Z is an anhydrous compound formed from a Group 2 element. On heating, Z thermally decomposes to give two different gases. Compared with other Group 2 compounds that contain the same anion as Z, Z has a relatively low thermal stability. What is compound Z?

  • Abarium carbonate
  • Bbarium nitrate
  • Cmagnesium carbonate
  • Dmagnesium nitrate

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