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- 1. Multiple Choice
What is oxidation?
A reaction involving oxygen
A reaction involving non-metals
- 2. Multiple Choice
Is this an example of oxidation?YesNo - 3. Multiple ChoiceWhich of the following statement is WRONG?The process of losing the electron is called OxidationAn oxidation reaction is often called a cathodic reactionThe process of receiving the electron is called ReductionA reduction reaction is often called a cathodic reaction
- 4. Multiple ChoiceIs the following equation an example of oxidation?
Cu + O2 ---> 2 CuOYesNo - 5. Multiple ChoiceIs the following equation an example of oxidation?
Na + Cl ----> NaClYesNo - 6. Multiple ChoiceWhat is corrosion?The release of oxygenBreakdown of a metal
- 7. Multiple ChoiceIs this an example of corrosion?YesNo
- 8. Multiple Choice
Name the two general classifications of corrosion.
Direct chemical attack and Electrochemical attack.
Fretting corrosion and Galvanic attack.
- 9. Multiple Choice
Rusting is a _____________ process.
Mechanical
Chemical
Physical
- 10. Multiple Choice
Rusting is a special term, given to the corrosion metal is... .
Au
Pt
Fe
Ag
- 11. Multiple Choice
What two things cause Iron to Rust ?
Air and Oxygen
Oxygen and Water
Water and Carbon dioxide
Carbon dioxide and Air
- 12. Multiple Choice
What is the chemical name given to Rust ?
Iron dioxide
Steel oxide
Iron oxide
Carbon dioxide
- 13. Multiple Choice
Rusting can be prevented by
Alloying
Tinning
Galvanizing
All of above
- 14. Multiple ChoiceWhat is the name of negative electrode?CathodeAnodeCationAnion
- 15. Multiple ChoiceWhat is the name of positive electrode?CathodeAnodeCationAnion
- 16. Multiple ChoiceWhich of the following statement is TRUE regarding Anodic and Cathodic reactions?Both reactions take place simultaneouslyBoth reactions take place one after anotherBoth reactions must occur at a different rateBoth reactions must occur at a fast rate
- 17. Multiple Choice
two types of Noble metals
gold and platinum
iron and copper
stainless steel and aluminum
tin and brass
- 18. Multiple ChoiceWhich of the following metals is very unreactive and unlikely to corrode.CopperGoldsodiumPotassium
- 19. Multiple Choice
Coating of Zn, Al and Cd on steel are _________ , because their electrode potentials are lower
Cathodic
Anodic
Not affecting
Expensive
- 20. Multiple Choice
The following metals would protect iron by electrons flowing to the iron is ... .
Silver
Gold
Copper
Magnesium
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