Chemistry Question on General Principles and Processes of Isolation of Elements

Question

Which one of the following is a mineral of iron ?

Answer 1

Solution

FeO $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ - Magnetite
CuCO ? Cu(OH) $\quad$ - Malachite
Cassiterite $\quad$ $\quad$ $\quad$ $\quad$ - SnO
Pyrolusite $\quad$ $\quad$ $\quad$ $\quad$ - MnO