Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine ?
Correct answer: C. H2
- A. Na2CO3
- B. NaHCO3
- C. H2
- D. None of these
Explanation
Electrolysis of brine produces chlorine at the anode, sodium hydroxide in solution, and hydrogen at the cathode. Therefore hydrogen is the co-product listed.
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