For the electrolysis of acidulated water, dilute sulphuric acid dil.H2SO4is preferred over dilute nitric acid dil.HNO3 for acidification.
True
Nitric acid is volatile than sulphuric acid, nitric acid may decompose and interfere with the electrolytic reaction,whereas dilute sulphuric acid will initiate the dissociation of water molecules into hydrogen and hydroxyl ions, and water starts acting as electrolyte.