Answer :


A brand new bicycle has electroplated handlebar and wheel rims.
In electroplating, the layer of one metal is deposited on other metal to prevent it from corrosion.
When the handlebar and wheel rims are accidentally scratched, the electroplated layer of Chromium metal comes off. This exposes the inner metal to corrosion. Thus, electroplated metal should not be scratched to prevent inner metal from corrosion.

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