E Answer the following questions briefly. 1. Mention two applications of electroplating. 2. Seawater is a better conductor of electricity than tap water. Why? 3. Name the gases that are obtained during the electrolysis of water. 4. How do you choose an electrolyte for electroplating a given metal on another metal 5. What is the advantage of a dry cell over a wet cell? Answer the following questions in detail. 1. Explain the method of copper plating an iron nail. 2. What is an electrolytic cell? Draw its schematic diagram.
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Electroplating is widely used in industry and decorative arts to improve the surface qualities of objects—such as resistance to abrasion and corrosion, lubricity, reflectivity, electrical conductivity, or appearance.
Deionised water by its nature has very few ions. ... Sea water has a relatively large number of Sodium and Chloride ions and has a conductivity of around 5S/m. This is because the Sodium Chloride salt dissociates into ions. Hence sea water is about a million times more conductive than fresh water.
Electrolysis of water is the process by which water is decomposed into oxygen and hydrogen gas, when electric current is passed through it.
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