Three of the following four materials are alike in a certain way and one is different. Find the odd one out.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Brass
Option (1) Brass — an alloy, a mixture of copper and zinc, not a single element, so brass is the odd one out.
Option (2) Iron — a metallic element (Fe).
Option (3) Copper — a metallic element (Cu).
Option (4) Silver — a metallic element (Ag).