Out of zinc and tin, whose coating is better to protect iron objects ?

E^@ values of three metals are listed below. {:(Zn_((aq))^(2+) + 2e^(-) to Zn_((s)),, E^@=-0.76V),(Fe_((aq))^(2+) + 2e^(-) to 2Fe(s) , , E^@=-0.44 V),(Sn_((aq))^(2+)+2e^(-) to Sn_((s)) ,, E^@=-0.14 V) :} Which of the following statements are correct on the basis of the above information ? (i)Zinc will be corroded in preference to iron if zinc coating is broken on the surface. (ii)If iron is coated with tin and the coating is broken on the surface then iron will be corroded . (iii)Zinc is more reactive than iron but tin is less reactive then iron.

Out of C and CO, which is better reducing agent for ZnO?

Out of Sn and Zn which one protects Fe better even after cracks ?

Out of C and CO, which is a better reducing agent at 673K?

How does cathodic protection of iron operate

How does cathodic protection of iron operate ?

Which metal is used for extraction of Au and Ag and also for galvanisation of iron objects ?

Which metal is used for extraction of Au and Ag and also for galvanisation of iron objects ?

What would happen if the protective tin coating over an iron bucket is broken in some places ?

Name a technique which is emplyed for the decoration as well as protection of a metallic object .