Which one of the following statements is correct for electrolysis of brine solution?
Which one of the following statements is correct for electrolysis of brine solution?
Show Hint
- $OH ^{-}$is formed at cathode
- $Cl _2$ is formed at cathode
- $O _2$ is formed at cathode
- $H _2$ is formed at anode
The Correct Option is A
Solution and Explanation
Electrolysis of brine solution
At anode
At Cathode :
So, the correct option is (A): \(OH^−\) is formed at cathode.
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If \( E^\circ_{Fe^{2+}/Fe} = -0.441 \, \text{V} \) and \( E^\circ_{Fe^{3+}/Fe^{2+}} = 0.771 \, \text{V} \),
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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