Multiple choice

From which of the following ores can iron be extracted?

  1. galena

  2. cryolite

  3. magnetite

  4. cinnabar

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Magnetite (Fe3O4) is a primary ore of iron and is known for its magnetic properties. Other options like galena (lead), cryolite (aluminum), and cinnabar (mercury) are ores for different metals. Magnetite and hematite are the most common sources for industrial iron extraction.

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