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Q.

Which metals will be used to electroplate on iron to protect it from rusting and to make it shine?


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a

Chromium 

b

Gold

c

Zinc

d

Copper

answer is C.

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Detailed Solution

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Zinc metal is used for electroplating on iron to protect it from rusting and to make it shine.
Zinc is applied to iron to protect it from corrosion and rust formation. The zinc coating will also make it look shiny. Zinc has higher electron valence than iron, and zinc coating will also give a shiny appearance, so that we will use zinc coating on iron.
Rusting is a process which occurs due to the oxidation of the metal.
 
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