for some half cell reactions are given below. On the basis of these mark the correct answer.

Question

for some half cell reactions are given below. On the basis of these mark the correct answer. (a) (b) (c)

Philoid · Accepted Answer

In dilute sulphuric acid solution, hydrogen will be reduced at the cathode

and H₂O is oxidized at anode.

2H₂O → O₂ + 4H⁺ + 4e^-

while in a concentrated solution of sulphuric acid, SO₂^- ions are oxidized to tetrathionate ions.