EVERYDAY SCIENCE

Detailed explanation-1: -During electrolysis, at the cathode (negative electrode), positively charged ions gain electrons and so the reactions are reductions.

Detailed explanation-2: -Cu 2 + ( aq ) + 2 Cl-( aq ) → Cu ( s ) + Cl 2 ( g ) The reaction at the cathode: The Copper ions have the lowest reduction potential. Thus, they are discharged in preference to ions to form neutral Copper atoms.

Detailed explanation-3: -These are known as Faraday’s laws of electrolysis. In the electrolysis of molten copper chloride, the substance liberated at the anode is chlorine and the substance deposited at cathode is copper.

Detailed explanation-4: -During the electrolysis of aqueous copper sulphate using copper electrodes, copper ions are generated at the anode, that go into the copper sulphate solution used as electrolyte. Next, the copper ions from the electrolyte are deposited at the cathode.

Detailed explanation-5: -Therefore, in the electrolysis of dilute aqueous Copper chloride, using Platinum electrodes, will deposit at the cathode and dissolve at the anode to form ions.