Q. Which one of the following ores is best concentrated by forth-floatation method?
A) Magnetite
B) Cassiterite
C) Galena
D) Malachite
Explanation
(c)
Forth-floatation is used to concentrated sulphide ores [Galena pbS)]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.