In an industrial process, three products are obtained from brine. One of them is a base useful in paper and soap industries. Which base is it?
Answer and explanation
Correct answer: Sodium hydroxide
The electrolysis of concentrated aqueous sodium chloride, or brine, is called the chlor-alkali process. It produces chlorine gas at the anode, hydrogen gas at the cathode, and sodium hydroxide in solution. Sodium hydroxide is a strong base used in soap manufacture and in the paper industry. The other listed substances are not the characteristic base product of brine electrolysis.
Frequently asked questions
What is the correct answer to this question?
Sodium hydroxide
Why is this the correct answer?
The electrolysis of concentrated aqueous sodium chloride, or brine, is called the chlor-alkali process. It produces chlorine gas at the anode, hydrogen gas at the cathode, and sodium hydroxide in solution. Sodium hydroxide is a strong base used in soap manufacture and in the paper industry. The other listed substances are not the characteristic base product of brine electrolysis.
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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