Which from following is strongest reducing agent?

Which from following is strongest reducing agent?
  1. $\mathrm{K}$
  2. $\mathrm{Al}$
  3. $\mathrm{Mg}$
  4. $\mathrm{Ag}$

Solution

The strength of reducing agents increases from top to bottom in the electrochemical series as $\mathrm{E}^0$ values decrease. Among the given options, $\mathrm{K}$ has the lowest value of $\mathrm{E}^{\circ}(-2.925 \mathrm{~V})$.

Asked in: MHT CET 2023 (12 May Shift 1)

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