Question:
Eᶱvalues of some redox couples is given below. Based on these values
choose the correct option.
Eᶱ values : Br2/Br–= + 1.90; Ag+/Ag(s) = + 0.80
Cu2+/Cu(s) = + 0.34; I2(s)/I– = + 0.54
(i) Cu will reduce Br–
(ii) Cu will reduce Ag
(iii) Cu will reduce I–
(iv) Cu will reduce Br2
Solution:
Option (iv) Cu will reduce Br2 is the answer.