Why can there be a problem in the chlor-alkali process if the products are not kept separate?
Answer and explanation
Correct answer: Unwanted reactions may occur among the products
In the chlor-alkali process, electrolysis of concentrated brine produces chlorine at the anode, hydrogen at the cathode and sodium hydroxide in solution. These products must be separated because chlorine can react with sodium hydroxide, and chlorine and hydrogen can form a hazardous mixture under suitable conditions. A membrane or another separation arrangement limits such contact. Thus unwanted reactions and safety risks, not insolubility or freezing, explain option A.
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What is the correct answer to this question?
Unwanted reactions may occur among the products
Why is this the correct answer?
In the chlor-alkali process, electrolysis of concentrated brine produces chlorine at the anode, hydrogen at the cathode and sodium hydroxide in solution. These products must be separated because chlorine can react with sodium hydroxide, and chlorine and hydrogen can form a hazardous mixture under suitable conditions. A membrane or another separation arrangement limits such contact. Thus unwanted reactions and safety risks, not insolubility or freezing, explain option A.
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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