An aqueous solution of Sodium Sulphate was electrolyzed using a platinum electrode, the products at the anode and cathode respectively are:
Correct answer: A. O2, H2
- A. O2, H2
- B. O2, Na
- C. O2, SO
- D. O2, S2O4-2
Explanation
Explanation: This question can be solved by recalling the order of the electrochemical series: From this, it can be seen that H+ will be discharged in preference to Na+ at the cathode as H2 and OH- will be discharged in preference to (SO4)2- at the anode as O2.
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