AIPMT PRELIMS 2001 Chemistry Electrode Potentials MCQ Question
Stand electrode potential are Fe²⁺/Fe E° = – 0.44 Fe³⁺/Fe²⁺ E° = 0.77 If Fe²⁺, Fe³⁺ and Fe block be kept together, then :-
Fe³⁺ increases
Fe³⁺ decreases
Fe²⁺ remains unchanged
Fe²⁺ decreases
Correct Answer
Detailed Explanation
The potential difference between Fe²⁺/Fe and Fe³⁺/Fe²⁺ indicates that Fe³⁺ will be reduced to Fe²⁺, increasing the concentration of Fe²⁺.
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