Caustic soda is made by electrolysis of concentrated solution of NaCI in:
Correct answer: A. Nelson's cell
- A. Nelson's cell
- B. Down's cell
- C. Nickel cadmium cell
- D. All of these
Explanation
Nelson's cell is specifically designed for the electrolysis of concentrated sodium chloride solution (brine) to produce caustic soda (sodium hydroxide), as well as chlorine and hydrogen gases. The diaphragm in the cell prevents the mixture of chlorine with caustic soda, ensuring the purity of the products. Down's cell, on the other hand, is used for the electrolysis of molten sodium chloride to produce sodium metal, not sodium hydroxide. The Nickel-cadmium cell is a type of rechargeable battery and is unrelated to the production of caustic soda. Therefore, the correct answer is Nelson's cell.
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