Corrosion & Its Prevention (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is corrosion?
What is corrosion?
Metals reacting with environment
What two substances must be present for iron to rust?
What two substances must be present for iron to rust?
Oxygen & water
What is rust chemically?
What is rust chemically?
Iron oxide
What does corrosion reduce in metals?
What does corrosion reduce in metals?
Structural integrity
How do protective layers prevent corrosion?
How do protective layers prevent corrosion?
They prevent reactions with environment
Why are ship hulls painted?
Why are ship hulls painted?
To prevent seawater corrosion
What is used in electroplating to coat a metal?
What is used in electroplating to coat a metal?
Electrical current
What does greasing prevent from contacting metal?
What does greasing prevent from contacting metal?
Moisture & oxygen
What protective layer does aluminium naturally form?
What protective layer does aluminium naturally form?
Aluminium oxide
Why does aluminium oxide stop further corrosion?
Why does aluminium oxide stop further corrosion?
It is inert
Which metal is used to coat iron in galvanisation?
Which metal is used to coat iron in galvanisation?
Zinc
How does galvanisation protect iron?
How does galvanisation protect iron?
Zinc corrodes instead of iron