Answer:
B
Explanation:
It is an electrolysis, i.e. the reduction takes place at the cathode and oxidation takes place at the anode.
The sodium ions react to sodium at the cathode and are reduced in the process.
red: Na+ + e- → Na
The chloride ions react to form chlorine at the anode and are oxidized in the process.
ox: 2Cl- → Cl2 + 2e-
Y is a solution, so the sodium chloride must be aquatized here.
