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

In 3 d series, the metal having the highest M2+/M standard electrode potential is
  1. Cr
  2. Fe
  3. Cu
  4. Zn

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

Asked in: JEE Main 2022 (27 Jun Shift 2)

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