Electrochemistry - Result Question 26
####28. On electrolysis of dilute sulphuric acid using platinum electrodes, the product obtained at the anode will be
(a) hydrogen
(b) oxygen
(c) hydrogen sulphide
(d) sulphur dioxide.
[1992]
Topic 3: Cells and Electrode Potential, Nernst Equation
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Solution:
- (b) During electrolysis of sulphuric acid, the following processes are possible at cathode:
For dilute sulphuric acid, first reaction is preferred but for concentrated acid, second reaction is preferred.
