Question : Which one of the following is not a ferrous mineral?
Option 1: Iron ore
Option 2: Manganese
Option 3: Chromites
Option 4: Tungsten
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Correct Answer: Tungsten
Solution : The correct option is Tungsten .
Tungsten is not a mineral that contains iron. It is a refractory metal (metals have high melting points and are resistant to heat and wear) and is classified as nonferrous. The other minerals listed, iron ore, manganese, and chromite, are ferrous since they include iron and are related to the manufacturing of iron and steel.
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