NEET Chemistry Standard Electrode Potentials MCQ Question
E° values of some redox couples are given below. On the basis of these values choose the correct option. E° values : Br₂/Br⁻ = + 1.90 ; Ag⁺/Ag(s) = + 0.80 ; Cu²⁺/Cu(s) = +0.34 ; I₂(s)/I⁻ = + 0.54 V
Cu will reduce Br₂
Cu will reduce Ag
Cu will reduce I⁻
Cu will reduce Br⁻
Correct Answer
Detailed Explanation
The more positive the E° value, the greater the tendency to gain electrons. Cu will reduce Ag⁺ because it has a lower E° value than Ag⁺/Ag.
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