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JEE Main202325 Jan 2023Evening ShiftChemistrys Block ElementsActual

Which one among the following metals is the weakest reducing agent?

Options

  1. AK
  2. BRb
  3. CNa
  4. DLi

Correct answer

C. Na

Step-by-step solution

According to the electrochemical series K +   /   K   →   - 2 . 93 V Rb +   /   Rb   →   - 2 . 98 V Na +   /   Na   →   - 2 . 71 V Li +   /   Li   →   - 3 . 05 V Among the given alkali metals, sodium metal is the weakest reducing agent as its standard reduction potential is least negative which is E Na + / Na °   =   - 2 . 71 So, the correct option is C.

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