Module 2 : CORROSION
Quiz
•
Chemistry
•
11th Grade - University
•
Medium
Raneesh Konnola
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rusting is a _____________ process.
Mechanical
Chemical
Physical
Thermal
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rusting of iron is an example of
Dry corrosion
Chemical corrosion
Electrochemical corrosion
Galvanic corrosion
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Iron rust in the presence of:
Vacuum
Moisture
Oxygen
Moisture and Oxygen
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Chemical formula of RUST is
FeCO3
CUSO4.5H2O
Fe2O3. x H2O
CaCO3.2H2O
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the chemical nature of rust?
iron (II) oxide
Iron (III) chloride
iron (III) oxide
hydrated iron(III) oxide
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rusting can be prevented by
Alloying
Tinning
Galvanizing
All of above
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
During rusting of iron, reaction occuring at cathode is
2 Fe (s)→2 Fe2+ + 4 e
O2(g) + 4 H+(aq) + 4 e ⎯→ 2 H2O (l )
2 Zn (s)→2 Zn2+ + 4 e
2 Cu (s)→2 Cu2+ + 4 e
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