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 _______.
(a) Most liquids that conduct electricity are solutions of acids, bases, and salts.
Explanation: Acids, bases, and salts when dissolved in water give ions. These ions conduct electricity.
(b) The passage of an electric current through a solution causes chemical effects.
Explanation: Whenever electric current passes through a conducting liquid, then chemical reactions take place. These chemical reactions cause chemical effects in the conducting solution.
(c) If you pass current through copper sulphate solution, copper gets deposited on the plate connected to the negative terminal of the battery.
Explanation: When we pass current through copper sulphate solution, then at the negative electrode, the positive ions (Cu2+) gain electrons at the negative electrode, and are reduced to pure Copper, which is thus deposited there.
(d) The process of depositing a layer of any desired metal on another material by means of electricity is called electroplating.
Explanation: Electroplating a process that used electric current to deposit dissolved ions to form layers of pure metal on the electrode.