Which is the correct group of three main products obtained in the chlor-alkali process?
Answer and explanation
Correct answer: Chlorine, hydrogen and sodium hydroxide
The chlor-alkali process is the electrolysis of concentrated aqueous sodium chloride, called brine. Chloride ions are oxidised at the anode to form chlorine gas, water is reduced at the cathode to form hydrogen gas, and sodium hydroxide remains in the solution. Therefore, the three principal products are chlorine, hydrogen, and sodium hydroxide. The other groups contain substances not produced by this process, 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?
The chlor-alkali process is the electrolysis of concentrated aqueous sodium chloride, called brine. Chloride ions are oxidised at the anode to form chlorine gas, water is reduced at the cathode to form hydrogen gas, and sodium hydroxide remains in the solution. Therefore, the three principal products are chlorine, hydrogen, and sodium hydroxide. The other groups contain substances not produced by this process, 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.
