Question

Which of the following is a sulphide ore?

• A. Carnallite
• B. Magnetite
• C. Copper pyrites
• D. Malachite

Answer 1

Answer: (C)

Copper pyrites

Answer 2

Chemical formula for magnetite is $Fe _{3} O _{4}$, malachite is $CuCO _{3}. Cu ( OH )_{2},$ carnallite is $KCl. MgCl _{2}. 6 H _{2} O$ and copper pyrites is $CuFeS _{2} .$ Therefore copper pyrites is a sulphide ore.