Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

This equation represents the breakdown of 3 moles of a chromium-containing ion in acidic solution. $3\text{CrO}_4^{3-}(aq) + 8\text{H}^+(aq) \rightarrow 2\text{CrO}_4^{2-}(aq) + \text{Cr}^{3+}(aq) + 4\text{H}_2\text{O}(l)$ Which of the statements below are correct?

  • A1, 2 and 3
  • B1 and 2 only
  • C2 and 3 only
  • D1 only

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