First slide

Activity Series (OR) Electro chemicals series

Question

A smuggler could not carry gold by depositing iron on the gold surface since

Easy

A

Gold is denser
B

Iron rusts
C

Gold has higher reduction potential than iron
D

Gold has lower reduction potential than iron

Solution

Iron is having lesser SRP than gold and reduces gold spontaneously.Thus Fe - electrode is not an inert electrode for Au⁺³ soluton.

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