General Science - Physics (Basics)
Which of the following metals is used to make coins due to its resistance to corrosion?
Which of the following metals is used to make coins due to its resistance to corrosion?
easy Q3 of 15
Step-by-Step Solution
Step 1: Identify metals resistant to corrosion used in coins
Copper is widely used in coinage because it resists corrosion and has good malleability.Step 2: Analyze other metals
Aluminium is lightweight but less commonly used for coins; iron rusts easily; sodium is highly reactive and not used in coins.Final Answer:
Copper → Option DQuick Check:
Metal used in coins = Copper ✅
Quick Trick: Copper's reddish color and durability make it ideal for coins.
Common Mistakes:
- Choosing iron or aluminium due to their availability instead of corrosion resistance.
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