Dear Student, Chemical effects of electric current is the property through which chemical reactions can be achieved in molecules when current is passed through them. For ex- when current is passed through water, water ionises or disassociates into H+(aq) and OH-(aq) ions, where H+(aq) ions go towards the cathode to gain electron to become stable and form H2 molecules and OH-(aq) ions go towards the anode to lose electrons and become stable,and, thus release O2 molecules.Regards