Question

Which of the following ore contains iron and copper?

• A. Malachite
• B. Azurite
• C. Copper pyrite
• D. None of these

Answer 1

The correct option is C

Copper pyrite

Explanation for the correct option:

Option (c):

• The ore is the naturally occurring minerals in the earth's crust from which the metals are extracted.
• The formula of Copper pyrite is ${\mathrm{CuFeS}}_2$.
• Copper pyrite is the ore that contains iron and copper.
• It is the principal ore of copper.

Explanation for the incorrect options:

Option (a):

• The formula of Malachite is ${\mathrm{CuCO}}_3.\mathrm{Cu}{\left(\mathrm{OH}\right)}_2$.
• Malachite is the ore that contains only copper metal in it.
• It is the principal ore of copper.

Option (b):

• The formula of Azurite is$\mathrm{Cu}{\left(\mathrm{OH}\right)}_2.2{\mathrm{CuCO}}_3$.
• Azurite is the ore that contains copper.

Option (d):

• Copper pyrite contains copper and iron so the answer cannot be none of these.

Final answer:

Hence, Option (c) is the correct answer. The ore contains copper and iron is Copper pyrite.