Question 1
Question detail
Why is zinc used in galvanising?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. It is a non-metal that does not corrode
- B. It is more reactive than iron and corrodes instead of iron
- C. It is a good conductor of electricity
- D. It is cheaper than iron
Answer
It is more reactive than iron and corrodes instead of iron
Explanation
Zinc is used in galvanising because it is more reactive than iron, meaning it will corrode first, protecting the iron underneath.
Common mistake
Misunderstanding Galvanising
Students often think galvanising involves coating iron with zinc to prevent rusting, but they confuse it with other protective methods.
Clarify that galvanising specifically refers to the process of applying a protective zinc coating to iron to prevent corrosion.
Related flashcards
Flashcard 1 of 5
Press Space to flip, arrows to move
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.
0 of 4 attempted