Single Answer MCQ
Q-00019680
Which metal is known to corrode and form rust when exposed to moisture?
1
Gold
2
Iron
3
Copper
4
Aluminium
Answer and Solution
Answer
B. Iron
Solution:
Iron is known to corrode and form rust (iron oxide) when it comes into contact with moisture and air. Gold and copper are more resistant to corrosion, while aluminium develops a protective oxide layer.
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