Multiple choice general knowledge

Which word does not belong to the group?

  1. copper

  2. iron

  3. carbon

  4. aluminum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Copper, iron, and aluminum are all metallic elements that are typically classified as metals. Carbon is a non-metallic element that exists in forms like graphite and diamond. Carbon is fundamentally different from metals in its properties, bonding, and classification on the periodic table, making it the clear odd one out in this group.

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