Question
Chemistry Question on General Principles and Processes of Isolation of Elements
Which one of the following is a mineral of iron?
A
Malachite
B
Cassiterite
C
Pyrolusite
D
Magnetite
Answer
Magnetite
Explanation
Solution
Fe3O4
Which one of the following is a mineral of iron?
Malachite
Cassiterite
Pyrolusite
Magnetite
Magnetite
Fe3O4