What are the main products obtained in the chlor-alkali process?
Answer and explanation
Correct answer: Chlorine, hydrogen, and sodium hydroxide
In the chlor-alkali process, concentrated brine is electrolysed. Chloride ions give chlorine gas at the anode, water is reduced at the cathode to produce hydrogen gas, and sodium ions combine with hydroxide ions in solution to form sodium hydroxide. Therefore, the three main products are chlorine, hydrogen, and sodium hydroxide. The other combinations do not describe brine electrolysis, so option 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?
In the chlor-alkali process, concentrated brine is electrolysed. Chloride ions give chlorine gas at the anode, water is reduced at the cathode to produce hydrogen gas, and sodium ions combine with hydroxide ions in solution to form sodium hydroxide. Therefore, the three main products are chlorine, hydrogen, and sodium hydroxide. The other combinations do not describe brine electrolysis, so option 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.
