Due to which of the following reasons Chromium plating is done on some objects used in everyday life? (i) Chromium is cheaper. (ii) Chromium has a shiny appearance. (iii)Chromium does not corrode. (iv) Chromium resists scratches. (A) (i), (ii), (iii) (B) (ii), (iii), (iv) (C) (i), (iii), (iv) (D) (i), (ii), (iii),(iv)
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Chromium is cheaper, has a shiny appearance, and does not corrode. (Option A)
- Electroplating is a very useful process, as chromium is made cheaper after using electroplating on chromium metal.
- The thick layer of metal deposited has few desired property, which the metal created by the object lacks.
- As it is relatively abundant element, it is done on objects like water taps and cycle bells to give them a shiny appearance and prevent them from corrosion.
- Plated chromium deposits are obtained from a solution of chromic acid and sulfuric acid, which helps them to make a thin plate.
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