The gas produced near the anode in the chlor-alkali process can be used for which purpose?
Answer and explanation
Correct answer: Disinfecting water
In electrolysis of brine, chloride ions lose electrons at the anode and form chlorine gas: 2Cl− → Cl2 + 2e−. Chlorine reacts with water to produce disinfecting species, so it is widely used in controlled water treatment. Therefore option A is correct. Making milk sour, setting plaster, and dissolving tooth enamel are not the intended uses of chlorine in this process.
Frequently asked questions
What is the correct answer to this question?
Disinfecting water
Why is this the correct answer?
In electrolysis of brine, chloride ions lose electrons at the anode and form chlorine gas: 2Cl− → Cl2 + 2e−. Chlorine reacts with water to produce disinfecting species, so it is widely used in controlled water treatment. Therefore option A is correct. Making milk sour, setting plaster, and dissolving tooth enamel are not the intended uses of chlorine in this process.
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.
