First slide

Introduction to metallurgy

Question

Which is not an ore of iron?

Easy

A

Magnetite
B

Haematite
C

Limonite
D

Cuprite

Solution

Magnetite: ${Fe}_{3} O_{4}$ Haematite: ${Fe}_{2} O_{3}$
Limonite: ${Fe}_{2} O_{3} \cdot 3 H_{2} O$ Cuprite: ${Cu}_{2} O$

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