The gas formed near the cathode in the chlor-alkali process can be used in which process?
Answer and explanation
Correct answer: Hydrogenation of vegetable oils
At the cathode during brine electrolysis, water gains electrons and produces hydrogen gas: 2H2O + 2e− → H2 + 2OH−. Hydrogen is used to hydrogenate unsaturated vegetable oils, converting them into more saturated fats such as vanaspati. Hence option B is correct. Bleaching powder is associated with chlorine, while the remaining options do not describe hydrogen’s relevant industrial use.
Frequently asked questions
What is the correct answer to this question?
Hydrogenation of vegetable oils
Why is this the correct answer?
At the cathode during brine electrolysis, water gains electrons and produces hydrogen gas: 2H2O + 2e− → H2 + 2OH−. Hydrogen is used to hydrogenate unsaturated vegetable oils, converting them into more saturated fats such as vanaspati. Hence option B is correct. Bleaching powder is associated with chlorine, while the remaining options do not describe hydrogen’s relevant industrial use.
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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