Electrochemistry - Result Question 48
####50. Which reaction is not feasible?
[2002]
(a) $2 KI+Br_2 \to 2 KBr+I_2$
(b) $2 KBr+I_2 \to 2 KI+Br_2$
(c) $2 KBr+Cl_2 \to 2 KCl+Br_2$
(d) $2 H_2 O+2 F_2 \to 4 HF+O_2$
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Solution:
- (b) $2 KBr+I_2 \longrightarrow 2 KI+Br_2$ reaction is not possible because $Br^{-}$ion is not oxidised to $Br_2$ with $I_2$ due to higher electrode (oxidation) potential of $I_2$ than bromine.
