What reactions take place at the cathode and the anode when each of the following is electrolyzed? (Assume standard conditions.) (a) 1.0 M NiBrâ‚‚ solution
a) Cathode: Ni deposition; Anode: Brâ‚‚ evolution
b) Cathode: Brâ‚‚ evolution; Anode: Ni deposition
c) Cathode: Hâ‚‚ evolution; Anode: Oâ‚‚ evolution
d) Cathode: Ni dissolution; Anode: Brâ‚‚ evolution