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Chemistry / Electrolysis

Chemistry / Electrolysis

  • How does a goldsmith polish gold and silver items making the old items new and shiny ? Its based on a simple chemical phenomenon called electrolysis.
    -- Electrolysis is the process of decomposition of a chemical compound in aqueous solutions or in molten state accompanied by a chemical change by using direct electric current .
  • Electrolytes are compounds which either in aqueous solution or in molten state allow electric current to pass through them.
  • Non- Electrolyte are the compounds which neither in solution nor in molten state allows an electric current to pass through it.
  • Electrolytic dissociation is the process due to which an ionic compound dissociates into ions in the fused state or in aqueous solution.
  • Based on the ease with which atoms of metals lose electrons to form positively charged ions, the metals are arranged in a series known as the electrochemical series.
  • Electroplating is a process in which a thin film of metal like gold, silver, nickel, chromium gets deposited on another metallic article with the help of electricity.

Also learn about electroplating of silver, refining of copper.

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Exercises
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  • Electrolysis - SmartTest

    Electrolysis

    • Accessed by: 439 Students
    • Average Time: 00:04:30
    • Average Score: 52.80
    • Questions: 57
    • Introduction to Electrolysis
    • Some Important Terms in Electrolysis
    • Theory of Electrolytic Dissociation
    • Characteristics of electrolysis
    • Electrochemcial Series
    • Selective Discharge of Ions at Electrodes
    • Examples of electrolysis
    • Applications of Electrolysis
    • Review of electrolysis

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