Complete the following reaction : C ( red hot coke ) + H 2 O → _____ + _____

Carbon, either as graphite or diamond, does not react with water under normal conditions. At high temperatures, when water is blown through hot coke, carbon will react with water, forming a mixture of hydrogen and carbon monoxide, complete reaction is as follows: C ( red hot coke ) + H 2 O g → CO g + H 2 g

Name the type of coating in the following article: Sheets which are used to cover rooftops.

Metallic coating - Metal coatings are coatings that are applied to metal in order to protect the metal and reduce wear and tear. An unprotected metal will rust and corrode due to environmental exposure. By coating the metal, an extra layer of protection is provided. Galvanising is a process of dipping iron sheets in molten zinc or by electrolytically coating its with zinc. These sheets used to cover rooftops, buckets, gutters etc.

Explain the following: Galvanization

Iron and steel gets rusted in contact with moisture/air.Galvanization is the process of applying a protective layer of zinc on a metal. It is a very common and very useful method for preventing the rusting of iron. This can be done by dipping the metal to be protected in hot, molten zinc or by the process of electroplating.This process is the protection of iron and steel from corrosion by coating with molten zinc.

Explain the following : Electroplating

The process of depositing a thin layer of a desired metal over a metal object with the help of electric current is called electroplating. This is done for protection from corrosion, testing for decorative purpose. For example-Bathroom taps made of iron or steel are electroplated with chromium metal to prevent their corrosion or rusting.It gives a shining appearance due to which they look more attractive.