General Science - Physics (Basics)
Which of the following metals is used as a sacrificial anode to prevent corrosion of iron structures?
Which of the following metals is used as a sacrificial anode to prevent corrosion of iron structures?
hard Q10 of 15
Step-by-Step Solution
Step 1: Understand sacrificial anode concept
A sacrificial anode is a more reactive metal that corrodes instead of the protected metal.Step 2: Identify metal used for protecting iron
Zinc is more reactive than iron and is commonly used as a sacrificial anode to prevent iron corrosion.Step 3: Analyze other metals
Copper, lead, and silver are less reactive and do not serve as sacrificial anodes for iron.Final Answer:
Zinc → Option DQuick Check:
Sacrificial anode metal = Zinc ✅
Quick Trick: Zinc coating on iron is called galvanization.
Common Mistakes:
MISTAKES- Confusing copper or lead as sacrificial anodes.
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