Question

4) Reaction at Anode.
5) Reaction at Cathode.
6) The ratio of the gases evolved
7) Products formed at cathode and anode.​

Answer 1

Answer:

1. The reaction at the anode is oxidation and that at the cathode is reduction. The electrons are supplied by the species getting oxidized. They move from anode to the cathode in the external circuit.
2. The reaction at the anode is oxidation and that at the cathode is reduction. Here, the anode is positive and cathode is the negative electrode. The reaction at the anode is oxidation and that at the cathode is reduction. The electrons are supplied by the species getting oxidized
3. The electrolysis of water leads to the formation of hydrogen and oxygen gas. These gases are obtained in the ratio of 2 : 1, i.e. H2 : O2 = 2 : 1.
4. H+ ions are attracted to the cathode , gain electrons and form hydrogen gas. OH - ions are attracted to the anode , lose electrons and form oxygen gas.