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Zn acts as sacrifical or cathodic protec...

`Zn` acts as sacrifical or cathodic protect iont to prevent rusting of iron because

A

`E_(OP)^(@)` of `Zn lt E_(OP)^(@)` of Fe

B

`E_(OP)^(@)` of `Zn gt E_(OP)^(@)` of Fe

C

`E_(OP)^(@)` of `Zn = E_(OP)^(@)` of Fe

D

Zn is cheaper than iron

Text Solution

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The correct Answer is:
B
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