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Assertion (A) : Galvanized iron does not...

Assertion `(A) :` Galvanized iron does not rust.
Reason `(R): Zn` has a more negative electrode potential than `Fe`.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

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The correct Answer is:
A
Zinc metal which has a more negative electrode potential than iron will provide electrons in preference to the iron, and thereofre corrode first. Only when all the zinc has been oxidised does the iron start to rust.
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