Q. Which of the following is not ore?
A) Zinc blende
B) Malachite
C) Bauxite
D) Pig iron
Explanation
(d)
Pig iron is the most impure from of iron and contains highest proportion of carbon (2.5-4%)
Malachite $\rightarrow Cu(OH)_{2}.CuCO_{3}$ (Cu ore)
Zinc blende $\rightarrow ZnS$ (Zn ore)
Bauxite $\rightarrow Al_{2}O_{3}.2H_{2}O$ (Al ore)
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.