Iron can be protected by coating with copper or tin. But if the coating is brokèn, iron corrodes faster than it dòes in the absence of Cu or tin. Why?

Iron may be protected from rusting by coating with zinc or tin. Explain why zinc protects iron more effectively than tin once the protection coating has been seratched, using the data given, Zn^2++2 e^- Zn,-0.76 ~V Fe^2++2 e^4 Fe,-0.44 ~V Sn^2 *+2 e^- S n,-0.14 ~V

Name the process of coating zinc over Iron so as to protect It from rusting

Why does sound travel faster in iron than in air?

Iron metal is largely used for making ships. ln the sea, ship is in contact with saline water. Destruction of iron becomes quicker in saline medium. a)What is such processes generalty called? b). Destruction of iron can be prevented by coating with zinc, Explain the chemical reaction by-which iron gets protected. Give equations.

Out of zinc and tin, which protects iron better even after cracks and why?

A farmer prepared 1% solution of copper sulphate using iron rod as the stirrer for preparing Bordeaux mixture. Next day he notices that the blue color almost disappeared and the iron get coated with reddish brown material. c) Justify that the above phenomenon is a redox reaction.

A farmer prepared 1% solution of copper sulphate using iron rod as the stirrer for preparing Bordeaux mixture. Next day he notices that the blue color almost disappeared and the iron get coated with reddish brown material. b) Account for the color change of the solution.

Iron is a metal which corrodes fast. What are the factors that favour the corrosion of iron? In coastal regions, copper nails are preferred to iron nails. What could be the reason? Can you suggest some measures to prevent the corrosion of iron?

Electroplating is one of the practical utilities of electrolysis .Copper can be coated on an iron bangle by this process. Which is the electrolyte used here ?

Electroplating is one of the practical utilities of electrolysis .Copper can be coated on an iron bangle by this process. Which metal is connected to negative terminal of the battery in this process ?