Q. Considering Ellingham diagram, which of the following metals can be used to reduce alumina ?
A) Mg
B) Zn
C) Fe
D) Cu
Explanation
[Solution] Only Mg lies below Al in the Ellingham diagram (above about 1623 K), so only Mg can reduce $Al_2O_3$. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.