During electrolysis, the reaction that takes place at cathode is _____. a. Oxidation b.Reduction c.Decomposition d.Redox

During electrolysis, the reaction that takes place at the cathode is (b) reduction


Electrolysis is defined as a process of decomposing ionic compounds into their elements by passing a direct electric current through the compound in a fluid form.

  • In the process of electrolysis, there is an exchange of ions and atoms due to the addition or removal of electrons from the external circuit.
  • On passing current, cations move to the cathode, take electrons from the cathode (given by the supply source-battery), and is discharged into the neutral atom.
  • The neutral atom, if solid, is deposited on the cathode and if gas, move upwards. This is a reduction process and the cation is, reduced at the cathode.

Uses of electrolysis

  • Electrolysis is done for coating one metal on another.
  • Industrial use includes various metals such as aluminium, magnesium, chlorine, and fluorine etc.
  • Electrolysis of water is a popular method used for different applications in different industries, mainly in the food industry, metallurgy, power plants amongst others.

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