alleryIn electroplating, what is coated onto a more reactive metal by electrolysis?
AA less reactive metal
BA more reactive metal
CA nonmetal powder
DA layer of plain oil
Answer & Solution
Correct answer: A. A less reactive metal
1. Electroplating uses electrolysis to deposit a metal coating.
2. A less reactive metal is coated onto a more reactive metal.
3. Examples are silver-plated spoons and gold-plated ornaments.
4. Coating with a more reactive metal would not give the same protective, decorative finish, so that option is wrong.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.117_
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