Q. Correct statement is
A) van-Arkel method is used for extraction of Zr
B) Limestone is acidic flux
C) Dolomite is an ore of Al
D) Willemite is carbonate ore
Explanation
(a)
Van-Arkel method is used to purify metals such as$Zr,\ Ti,\ V,\ Th$, etc, limestone is basic flux. Dolomite $(CaCO_{3})$ is an ore of$\ Ca$. Willemite $(Zn_{2}SiO_{4})$ is a silicate ore
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.