Question 39
Metals and their CompoundsCorrosion is exhibited by
- A.iron only
- B.electropositive metals
- C.metals below hydrogen in the electrochemical series
- D.all metals.
Show the answer and explanation
Answer: B (electropositive metals)
Explanation
Corrosion is the oxidation of a metal by air and water. Electropositive (reactive) metals lose electrons easily, so they corrode; unreactive metals such as gold and platinum do not.