Home Chemistry Electrochemistry NCERT Examplar Iron can be protected by coating with zinc o…
Chemistry Electrochemistry NCERT Examplar Single Correct MCQ
Published on: August 13, 2026

Iron can be protected by coating with zinc or tin. If coating is broken

A
Iron will corrode faster if coated with zinc
B
Iron will corrode faster if coated with tin
C
Iron will corrode faster in both cases
D
Iron will not undergo any corrosion in both cases

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Text Solution

Verified by Experts
The correct answer is:
B

If coating is broken, iron will corrode faster if coated with tin. As iron lose electron more easily than tin due to low reactivity of tin. This is because their standard oxidation potentials are:

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