Electroplating
Chapter Name : Chemical Effects Of Electric Current |
Sub Topic Code : 101_08_14_03_01 |
Topic Name : Electroplating |
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Sub Topic Name : Electroplating |
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Introduction
Electroplating consists of the two metals involved as electrodes and a dilute electrolyte to provide a path for the current.
Pre-Requisites:
Basics of chemical effects of electric current, Electrolyte,
Activity:
Observe what happens when two copper plates connected to a battery is immersed in copper sulphate solution. The materials can be obtained at your chemistry and physics lab.
Real Life Question:
Gold plated ornaments are very popular. How can gold be made do deposit on copper?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| electroplating | The process of depositing a layer of any desired metal on another material, by means of passing electricity through an electrolyte |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Electroplating set up | Watch how the electroplating happens when current passes through the set up |
Real life uses :
Providing a protective coating to metals, artificial jewellery
Places to visit :
Jewel-smith workshop, can so how this is done to create artificial jewellery.
Practical examples around us
| Examples | Explainations |
|---|---|
| Jewellery | To give a gold coating to copper or bronze jewellery |
What you learn in Theory:
theory and principles behind electroplating
What you learn in Practice:
Applications of electroplating and how it helps in everyday life