The compound FeCO₃ is:
A) iron pentacarbonyl
B) ferric carbonate
C) ferrous carbonate
D) iron oxide
E) none of the other answers is correct
IMAT 2025 · Question 45
Q45 - Nomenclature of inorganic compounds
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The correct answer is C) ferrous carbonate.
Carbonate is CO₃²⁻, so the iron in FeCO₃ is Fe²⁺. Fe²⁺ is "ferrous" and Fe³⁺ is "ferric", so this is ferrous carbonate (iron(II) carbonate).
Iron pentacarbonyl is Fe(CO)₅, a different compound entirely.
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