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NEET 2020
Exam
NEET
Year
2020
Subject
Chemistry
Chapter
Electrochemistry

NEET 2020 · Chemistry · Electrochemistry

Identify the reaction from following having top position in EMF...

Identify the reaction from following having top position in EMF series (Std.red. potential) according to their electrode potential at 298K.298K .

Options

  1. AMg2++2e−→Mg(s){Mg}^{2 +} + 2{e}^{-} \to {Mg}_{( s )}
  2. BFe2++2e−→Fe(s){Fe}^{2 +} + 2{e}^{-} \to {Fe}_{( s )}
  3. CAu3++3e−→Au(s){Au}^{3 +} + 3{e}^{-} \to {Au}_{( s )}
  4. DK++e−→K(s){K}^{+} + {e}^{-} \to {K}_{( s )}

Correct answer

C. Au3++3e−→Au(s){Au}^{3 +} + 3{e}^{-} \to {Au}_{( s )}

Step-by-step solution

According to electrode potential series, Au+3+3e−→Au(s){Au}^{+ 3} + 3{e}^{-} \to {Au}_{( s )} (has the highest position ⇒max.SRP⇒ max . SRP)
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