Spectacular Rusting Of Iron Drawing
The rusting of Iron Iron in contact with water forms the anode and in contact with air forms the cathode.
Rusting of iron drawing. Rusting of iron or corrosion of iron needs both air and water. Answer is c i iii and iv Explanation Rusting of iron is a chemical process where iron reacts with water and oxygen to produce iron oxide whereas. As it is a change of the substance it is a chemical change Hence the correct option is C.
Rust is the orange-brown discoloration that builds up on metal. Rust is the common name for iron oxideThe most familiar form of rust is the reddish coating that forms flakes on iron and steel Fe 2 O 3 but rust also comes in other colors including yellow brown orange and even greenThe different colors reflect various chemical compositions of rust. Iron is susceptible to rusting Rusting can only occur in the presence of moisture water and air Controlling humidity test tube C prevents rusting Galvanising using a more reactive metal such as zinc prevents the rusting of iron.
The process in statement ii is a chemical change because rusting causes formation of a new compound. Whenever you have iron water and oxygen together you get rust. The main catalyst for rust to occur is water.
This is called rusting of iron. Other statements are examples of physical changes where no new compounds are formed. This rust is formed from a redox reaction between oxygen and iron in an environment containing water such as air containing high levels of moisture.
Ii Rusting of iron iii Bending of an iron rod iv Drawing a wire of iron metal a i ii and iii b i ii and iv c i iii and iv d ii iii and iv Soln. Several forms of rust are distinguishable visually and form under different circumstances. Rusting is a type of Chemical Change.
Experiment to prove that air and water are necessary for rusting of iron Take three test tubes A B and C and place one clean iron nail in each of them. Chemical Reaction of Rusting is as follows. Rustis a general term for iron oxides formed by the reaction of iron with oxygen.