Statement A: Galvanised iron does not rust.Statement B: Zinc has a more negative electrode potential than iron.
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a
Both Statement A and Statement B are true
b
Both Statement A and Statement B are false
c
Statement A is true but Statement B is false.
d
Statement A is false but Statement B is true.
answer is A.
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Detailed Solution
Zinc metal which has a more negative electrode potential than iron will provide electrons in preference of the iron, and therefore corrodes first. Only when all the zinc has been oxidised then the iron start to rust.