RRB Technician 2014 Ques 50
Question: Sulphide ores are generally concentrated by
Options:
A) froth floatation
B) leaching
C) magnetic separation
D) by gravity
Show Answer
Answer:
Correct Answer: A
Solution:
- Sulphide ores are concentrated by froth floatation process because of their non-wettability in water. When they are agitated in water containing pine oil, they form froth with oil and come on the surface. From where they are collected and dried.
BETA
