What main products are obtained in the chlor-alkali process?
Answer and explanation
Correct answer: Chlorine, hydrogen, and sodium hydroxide
The chlor-alkali process electrolyses aqueous sodium chloride, or brine. Chloride ions are oxidised at the anode to form chlorine, water is reduced at the cathode to form hydrogen, and sodium hydroxide accumulates in the solution. Therefore the three principal products are chlorine, hydrogen, and sodium hydroxide. Option A is correct; the other combinations do not result from brine electrolysis.
Frequently asked questions
What is the correct answer to this question?
Chlorine, hydrogen, and sodium hydroxide
Why is this the correct answer?
The chlor-alkali process electrolyses aqueous sodium chloride, or brine. Chloride ions are oxidised at the anode to form chlorine, water is reduced at the cathode to form hydrogen, and sodium hydroxide accumulates in the solution. Therefore the three principal products are chlorine, hydrogen, and sodium hydroxide. Option A is correct; the other combinations do not result from brine electrolysis.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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