Chemical effects of electric current

Fill in the blanks.
(a) Most liquids that conduct electricity are solutions of ,
______________ and ______________.
(b) The passage of an electric current through a solution causes
______________ effects.
(c) If you pass current through copper sulphate solution, copper gets
deposited on the plate connected to the terminal of the
battery.
(d) The process of depositing a layer of any desired metal on another
material by means of electricity is called .