The electrolytic decomposition of dilute sulphonic acid with platinum
electrode in cathodic reaction is
[MNR 1988; UPSEAT 1999, 2002]
Oxidation
Reduction
Oxidation and reduction both
Neutralisation
b
The cathode reaction in electrolysis of dilute sulphuric acid with Platinum electrode is :
Which of the following electrolytes is least effective in causing flocculation of
ferric hydroxide sol
[MNR 1991; UPSEAT 1999]