Chemistry
Grade-7
Easy
Question
What are the ores that are formed from the iron?
- Hematite
- Magnetite
- Limonite
- All the above
Hint:
A lot of ores are formed from iron.
The correct answer is: All the above
The correct option is All of the above.
- The most common ore types are Hematite and magnetite.
- Pure magnetite contains 72.4% iron, 69.9% in hematite, 59.8% in limonite and 48.2% in siderite.
- The ore has a lower metal content.
- Limonite is a general term for a mixture of fine-grained iron oxides, generally having goethite in excess, but may also contain hematite, lepidocrocite, and other minerals.
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