Question
Download Solution PDFThe products formed during the electrolysis of brine are
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF Key Points
- During the electrolysis of brine (aqueous NaCl solution), NaOH, H2, and Cl2 are produced.
- Chlorine gas (Cl2) is liberated at the anode (oxidation reaction).
- Hydrogen gas (H2) is liberated at the cathode (reduction reaction).
- Sodium hydroxide (NaOH) is formed in the solution as a by-product.
Important Points
- Electrolysis of brine: Brine is a concentrated solution of sodium chloride (NaCl) in water. When subjected to electrolysis, it undergoes decomposition into its components.
- Chemical equation: 2NaCl(aq) + 2H2O(l) → 2NaOH(aq) + H2(g) + Cl2(g).
- The process is widely used in the industrial production of chlorine, hydrogen, and sodium hydroxide.
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