Organizer: CSRI & Jigyasa Foundation
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About the Quiz
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Please answer all the multiple choice questions. You will be awarded 2 points for each correct answer. No negative marks for wrong answers. E-certificate will be provided for all the participants.
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1. Chemical formula of rust is ……………..
*
2 points
Fe2O3
FeO
Fe3O4
Fe2O3.XH2O
2. Electrochemical corrosion takes place on ……………..
*
2 points
Anodic area
Cathodic area
Near cathode
Near anode
3. Lower is pH, corrosion is ……………..
*
2 points
Greater
Lower
Constant
None of the above
4. Process of corrosion enhanced by ……………..
*
2 points
Air & moisture
Electrolytes in water
Metallic impurities
All of above
5. Smaller the grain size, corrosion is ……………..
*
2 points
Greater
Lower
Constant
Doesn’t affected
6. Standard electrode potential of Al3+/Al is ……………..
*
2 points
+0.66 V
-0.66 V
-1.66 V
+1.66 V
7. Standard electrode potential of Fe2+/Fe is ……………..
*
2 points
+0.44 V
-0.44 V
+1.44 V
-1.44 V
8. Standard electrode potential of hydrogen is ……………..
*
2 points
1.00 V
0.00 V
0.01 V
0.001 V
9. Standard electrode potential of Zn2+/Zn is ……………..*
2 points
-0.76 V
+0.76 V
-2.76 V
+2.76 V
10. Volatile oxidation corrosion product of a metal is ……………..
*
2 points
Fe2O3
MoO3
Fe3O4
FeO