Which of the following is an example of a natural magnet?(1 Point)a) Copperb) Magnetitec) Bakelited) Haematite
Question
Which of the following is an example of a natural magnet?(1 Point)a) Copperb) Magnetitec) Bakelited) Haematite
Solution
The answer is b) Magnetite. Magnetite is a natural magnet, it is a rock mineral and one of the main iron ores, with the chemical formula Fe3O4. It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself.
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