Discussion :: Chemistry
- When a spoon is to be electroplated with nickel the spoon is
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A.
Dipped in a nickel sulphate solution |
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B.
Made anode and a pure nickel rod, the cathode |
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C.
Made cathode and a pure nickel red, the anode |
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D.
Coated with nickel sulphate and dried |
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Answer : Option C
Explanation :
Electroplating is the deposition by electrolysis of a coating of metal upon a conducting surface. The simplest system makes the object to be plated the negative electrode (cathode) or plate in a galvanic couple. Thus a spoon or other object may be connected by a wire to a plate of nickel. The process that occurs on the spoon is called reduction and, therefore, the spoon is also referred to as a cathode.
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