1.(i) Write down the differences between chemical and electrochemical corrosion. What are the factors which affect electrochemical corrosion.
(ii) Describe mechanism of electrochemical corrosion by hydrogen evolution type and oxygen absorption type in detail.
2. (i) Explain electroless platting of Nickel in detail.
(ii) Describe mechanism of oxidation corrosion and describe the function of metal Oxide layer.
3. (i) What do you mean by cathodic protection? Describe the sacrificial anode and impressed current cathodic techniques for prevention of corrosion.
(ii) Describe the application of corrosion inhibitors in corrosion control.
4. (i) Write a detail note on differential aeration corrosion and galvanic corrosion.
(ii) What do you mean by paint? Write down the constituents and functions of paints?
5. (i) Write down difference between electroplating and electroless plating.
(ii) Describe how hot dipping process is performed?
6. (i) Explain the different features of anodizing of aluminum.
(ii) Write down the major objectives of electroplating. Describe the method that is used in electroplating of Gold on copper.