Question

When acidulated water (dil.H2SO4 solution) is electrolysed, will the pH of the solution be affected? Justify your answer.


NCERT Class XII
Chemistry - Exemplar Problems

Chapter 3. Electrochemistry

Answer 1

Answer:

The pH of solution will not be affected because there is no change in the concentration of H+ions.

At anode: 2H2O(I) ______> O2(g) + 4H+ + 4e-

At cathode : 4H^+ +4e- ---------2H2

Answer 2

Answer:

The pH of the solution  dord not get affected due to the below reason,

Explanation:

pH of the solution will not be affected as- [H+] remains constant.

• At anode : 2H2O → O2 + 4H+ + 4e–
• At cathode 4H+ + 4e– → 2H2