Please Help with this electrochemistry question?

Posted on 2017-06-01 18:41:00 in Chemistry by SANDDY

A solution containing equimolar amounts of NiCl2 and SnBr2 is electrolyzed using a 9V battery and graphite electrodes. What are the first products formed? 
(A) Ni(s) at cathode, Cl2(aq) at anode 
(B) Ni(s) at cathode, Br2(aq) at anode 
(C) Sn(s) at cathode, Br2(aq) at anode 
(D) Sn(s) at cathode, Cl2(aq) at anode 

Standard Reduction Potential (V): 
Ni2+(aq) + 2e – → Ni(s) –0.236 
Sn2+(aq) + 2e – → Sn(s) –0.141 
Br2(aq) + 2e – → 2Br –(aq) 1.077 
Cl2(aq) + 2e – → 2Cl –(aq) 1.360

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