aq. NaBr.

"Electrolysis of an aqueous solution of NaBr will produce hydrogen at the cathode, as the aqueous sodium sulfate solution did, because neither Na+(aq) nor Br-(aq) can be reduced at potentials which are less negative than standard hydrogen. The electrolysis of aqueous NaBr solutions will produce bromine at the anode because the standard potential of bromide oxidation is less positive than that of the oxidation of water."

http://www.ualberta.ca/~jplambec/che/p102/p02112.htm

ahhhh. i wrote water discharged!! haha. fine.