State three uses of electrolysis.
Answers
(i) Electrolysis is commonly employed for coating one metal with another. The method of coating one metal with another using an electric current is called electroplating.
(ii) Metals that corrode easily are protected by coating them with a metal that doesn't corrode easily. Nickel and chromium are widely used in the automobile industry for coating.
(iii) Electrolysis is used in industry for the production of many metals and non metals (example Aluminium,Magnesium, Chlorine and Fluorine.)
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Answer:
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Explanation:
Electrolysis is used in industry for the production of many metals and non-metals (e.g., aluminium, magnesium, chlorine, and fluorine).
Electrolysis is commonly employed for coating one metal with another. The method of coating one metal with another using an electric current is called electroplating. The general set-up used for electroplating an object is shown in Figure.
The method involved in electroplating is as follows:
The object to be coated is made the cathode.
The metal to be deposited on the object is taken in the form of an electrode and made the anode.
The electrolyte contains dissolved salts of the metal to be coated.
Ions of the metal (which are positively charged) are attracted by the cathode and therefore move towards the object and get deposited on it.
uses-electrolysis-1
Metals that corrode easily are protected by coating them with a metal that does not corrode easily. Nickel and chromium are widely used in the automobile industry for coating.
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