Electroplating
Electroplating
The method involved in electroplating is as follow:
1. The object to be coated is made the cathode.
2. The metal to be deposited on the object is taken in the form of an electrode and made the anode.
3. The electrolyte contains dissolved salts of the metal to be coated.
4. Ions of the metal (which are positively charged) are attracted by the cathode and therefore move towards the object and get deposited on it.
Electroplating is done for many purposes. Here are a few examples:
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.
2. Electroplating is used for decoration. For example, cutlery, statues, and jewellery made of cheaper metals are coated with expensive metals like gold and silver.
3. Electroplating is used in the manufacture of printed circuit boards. Which are used in T.V, computer, etc.
Which of the following statements is/are correct : (a) The object to be coated is made the cathode. (b) The electrolyte contains dissolved salts of the metal to be coated.
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| Right Option : C | |||
| View Explanation | |||
Which of the following is used for electroplating in automobile industries ? | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) The object to be coated is made the cathode. (b) The object to be coated is made the anode. (c) The electrolyte contains dissolved salts of the metal to be coated. | |||
| Right Option : D | |||
| View Explanation | |||
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