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In 3 d series, the metal having the highest M 2 + / M standard electrode potential is

Options

  1. ACr
  2. BFe
  3. CCu
  4. DZn

Correct answer

C. Cu

Step-by-step solution

Cr + 2 / Cr → - 0 . 90   V Fe + 2 / Fe → - 0 . 44   V Cu + 2 / Cu → + 0 . 34   V Zn + 2 / Zn → - 0 . 76   V So Ans. Cu + 2 / Cu

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