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There iron sheets have been coated separ...

There iron sheets have been coated separately with three metals (A,B and C ) whose standard electrode potentials are given below.
`{:("Metal"," "A," "B," "C," "Iron),(,-0.46" V",-0.66" V",-0.20" V",-0.44" V"):}`
Identify in which case rusting will take place faster when coating is damaged.

Text Solution

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Comparing oxidation potential of iron with those of metals A,B and C, iron has higher oxidation potential than C only. Hence, when coating of C is broken, rusting will become faster.
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