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NTPC Graduate Tier 1 2016 Shift 2 📅 02 Apr, 2016

Choose the one which is different or odd from the following.

A
Aluminum
B
Iron
C
Copper
D
Brass
Result Summary
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APEDIA

NTPC Graduate Tier 1
2016 • 02 Apr, 2016 • Shift 2
Choose the one which is different or odd from the following.
Correct Answer
Brass
Material Properties Analysis: The options consist of four different metallic substances. To find the odd one out, we must examine their fundamental chemical sta......
💡 Analysis & Explanation
Material Properties Analysis
The options consist of four different metallic substances. To find the odd one out, we must examine their fundamental chemical states.
Elemental Identification
Aluminum (Al), Iron (Fe), and Copper (Cu) are all primary chemical elements. They exist natively and have distinct atomic numbers on the periodic table.
Alloy Identification
Brass, however, is not a fundamental element. It is a manufactured metallic alloy primarily created by combining Copper and Zinc.
Conclusion
Since Brass is an alloy and the other three are pure elemental metals, Brass is the clear outlier.