Assessment
Corrosion and Its Prevention
Corrosion and Its Prevention
ninja coder
Chemistry
Grade10
10 Plays
100 Participants
10 Qs
1.
Multiple Choice
1 pts•30 sAnswer choicesRusting of iron is an example of which type of chemical change?
Physical change
Endothermic change
Chemical change
Reversible change
2.
Multiple Choice
1 pts•30 sAnswer choicesIdentify the condition that accelerates the corrosion of iron.
Dry air
Distilled water
Moist air
Pure oxygen
3.
Multiple Choice
1 pts•30 sAnswer choicesSelect the method used to prevent rusting by applying a layer of zinc.
Alloying
Electroplating
Galvanization
Painting
4.
Multiple Choice
1 pts•30 sAnswer choicesChoose the material that does not corrode easily.
Iron
Aluminium
Gold
Steel
5.
Multiple Choice
1 pts•30 sAnswer choicesCoating iron with paint helps prevent corrosion by:
Increasing reactivity
Allowing oxidation
Preventing contact with air and moisture
Making it heavier
6.
Multiple Choice
1 pts•30 sAnswer choicesOxidation of metals in the presence of air and moisture results in:
Shining surface
Corrosion
Reduction
Crystallization
7.
Multiple Choice
1 pts•30 sAnswer choicesPick the industry where corrosion causes major economic loss.
Food industry
Electronics
Construction
Pharmaceuticals
8.
Multiple Choice
1 pts•30 sAnswer choicesWhich metal forms a protective oxide layer that prevents further corrosion?
Iron
Magnesium
Aluminium
Zinc
9.
Multiple Choice
1 pts•30 sAnswer choicesSacrificial protection involves coating iron with a metal that:
Is less reactive than iron
Is more reactive than iron
Is unreactive
Does not form oxides
10.
Multiple Choice
1 pts•30 sAnswer choicesGalvanization is commonly used to protect which object from corrosion?
Plastic pipes
Steel utensils
Iron bridges
Glass bottles