Caustic Soda is made by electrolysis of concentrated solution of NaCl in _.
Correct answer: D. All of these
- A. Nelson's Cell
- B. Hg- Cell
- C. Castner Kellner Cell
- D. All of these
Explanation
Option A: Nelson's Cell, also called the Mercury Cell or Castner-Kellner Cell, is one type of electrolytic cell used for the production of caustic soda. It involves the use of a mercury cathode and a diaphragm to separate the anode and cathode compartments.Option B: Hg-Cell refers specifically to the electrolytic cell where mercury is used as the cathode material.Option C: Castner-Kellner Cell is another type of electrolytic cell used for the production of caustic soda, which does not involve the use of mercury. Option D: Caustic soda, also known as sodium hydroxide (NaOH), can be produced by the electrolysis of a concentrated solution of sodium chloride (NaCl) using different types of electrolytic cells. Therefore, all of the options mentioned (A) Nelson's Cell, (B) Hg-Cell, and (C) Castner Kellner Cell, are correct methods for the electrolysis of a concentrated solution of NaCl to produce caustic soda.
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About Reactions of Group I Elements
Group I elements have one valence electron, so their reactivity increases down the group as ionisation energy decreases. Their reactions with water, oxygen, hydrogen and halogens produce hydroxides, oxides, hydrides and halides, while the behaviour of lithium differs from the heavier metals because of its small ionic size.
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