Q. Forth floatation method is successful in separating impurities from ores because
A) The pure ore is soluble in water containing additives like pine oil, cresylic acid etc
B) The pure ore is lighter than water containing additives like pine oil, cresylic acid, etc
C) The impurities are soluble in water containing additives like pine oil, cresylic acid, etc
D) The pure ore is not easily wetted by water as by pine oil, cresylic acid, etc
Explanation
(d)
In froth floatation method, the pure ore is not easily wetted by water but wetted by pine oil, so it is successfully separated from impurities
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.