Redox Reactions And Electrochemistry Question 531
1.0 L each of a buffer containing 1 mole $ NH_3 $ and 1 mol of $ NH_4^{+} $ were placed in the cathodic and anodic half-cells and 965 C of electricity was passed. If anodic and cathodic half cells reactions involve oxidation and reduction of water only, as
$ 2H_2O\xrightarrow{{}}4{H^{+}}+O_2+4{e^{-}}; $ $ 2H_2O+2{e^{-}}\xrightarrow{{}}H_2+2O{H^{-}} $ Then pH of a solution is a measure of its hydrogen ion concentration.
Options:
A) cathodic potential will increase
B) anodic potential will decrease
C) both the solutions will remain practically constant
D) both the solutions will increase
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Due to buffer action the pH will remain practically constant,
BETA
