'Concentrated' can mean very very concentrated or just concentrated.
My personal answer is NONE of the options; I am expecting zinc to be at the cathode and chlorine to be at the anode since I assume that the concentration of the H+ and the OH- is way too small. Again, this depends on how concentrated the solution is.
Ironically, I saw this question elsewhere and their given answer is also none of the four options provided here.
*If you qualify, the Free 360 Tutoring Program will be extended to you at no extra charge.
On top of the tutor you are getting, ManyTutors will provide unlimited free tutors to help you with any questions you may have for other subjects. Just snap a photo of your homework, post, and someone will provide the solution for free.
You will get a complimentary premium account on Ask ManyTutors that allows you to ask English, Chinese, Malay, Math, Science, Geography and History homework questions free of charge.
Under the 360 Program, the tutor will receive a different rate from what you are paying to ManyTutors.