What are the main products 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 form chlorine gas at the anode, and water forms hydrogen gas at the cathode. Hydroxide ions remain in solution and combine with sodium ions to produce sodium hydroxide. Thus the three important products are chlorine, hydrogen, and sodium hydroxide; the other combinations do not describe brine electrolysis, so A is correct.
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 form chlorine gas at the anode, and water forms hydrogen gas at the cathode. Hydroxide ions remain in solution and combine with sodium ions to produce sodium hydroxide. Thus the three important products are chlorine, hydrogen, and sodium hydroxide; the other combinations do not describe brine electrolysis, so A is correct.
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.
