S Block Elements Question 196
Question: Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it
[DPMT 2004; BHU 2004]
Options:
A) Prevents air from reaching the surface of iron
B) is more readily converted into positive ions
C) Is higher than iron
D) Forms a corrosion-resistance alloy with iron
Show Answer
Answer:
Correct Answer: B
Solution:
Due to electropositive and reactive in nature, magnesium is readily converted into positive ions on contact with iron pipes and hence, iron pipes remains as it is.
BETA
