Chemistry 5070 · O Level · Transition elements

Transition elements — practice question

Metal X ions are mixed with aqueous potassium iodide. $2X^{2+}(aq) + 4I^{-}(aq) \rightarrow 2XI(s) + I_2(aq)$ (coloured) Using this information, it can be concluded that X is probably a .....1..... metal and the $X^{2+}(aq)$ ions are .....2..... . Which words best fill gaps 1 and 2?

  • A1: Group II, 2: oxidised
  • B1: Group II, 2: reduced
  • C1: transition, 2: oxidised
  • D1: transition, 2: reduced

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