MCQ
Which of the following items cannot be picked up by a magnet?
  • A
    Hair pins
  • B
    Paper clips
  • Aluminum false
  • D
    Iron nails

Answer

Correct option: C.
Aluminum false
Those materials which are attracted by magnet are called magnetic materials.
Iron, steel, nickel and cobalt are attracted by magnet.
So, iron, steel, nickel and cobalt are magnetic materials.
The most common and important magnetic materials are however Iron and Steel.
Hair pins, paper clips, iron nails all are made of either of iron or steel.
So, iron, steel, nickel and cobalt are magnetic materials.

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