Which effect of electric current is utilized when a thin layer of chromium metal is deposited on an iron tap? What is this process known as? (b) For electroplating copper on an iron object, which terminal of the battery (positive or negative) is connected to the iron object? Also, name the electrolyte you will use for this purpose.
ScienceClass 8ICSEAnswered 28 Mar 2026
Answer
Solution:
(a) This is called the chemical effect of heating and the process is called electroplating.
(b) Metal to be electroplated is taken as the cathode (negative terminal) and the one used for coating is used as the anode which is a positive terminal.
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