Question:
Which of the following is obtained on electrolysis of brine solution?
Which of the following is obtained on electrolysis of brine solution?
Updated On: Jul 29, 2024
- \(NaOH\)
- \(H_2\) gas
- \(Cl_2\) gas
- \(Na\)
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The Correct Option is D
Solution and Explanation
At anode:
\(2Cl^- → Cl_2 + 2e^-\)
At cathode:
\(2e^- + 2H_2O → H_2 + 2OH^-\)
Na metal is not obtained on electrolysis of brine.
So, the correct option is (D): \(Na\)
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Concepts Used:
Electrolysis
Electrolysis:
Electrolysis is the process by which an element is decomposed and undergoes some chemical change under the influence of any electric current. The first-ever electrolysis was executed out by Sir Humphrey Davey in the year 1808. Electrolysis can occur in both Galvanic cells and Electrolytic cells.
Applications of Electrolysis:
- Electrolytic cells are used for the production of Hydrogen and Oxygen gas from water.
- They are used for the large-scale production of pure metals like sodium, copper, magnesium, etc.
- They are used to extract Aluminium from Bauxite.
- Electrolytic cells are used for electroplating, a process by which a thin protective layer of one metal is formed over another metal, mostly for protection.
- Electrolysis is used for the electrorefining of non-ferrous metals.
Read More: Products of Electrolysis