Purification And Characterisation Of Organic Compounds Question 1
Question: Sulphide ores are generally concentrated by
[CPMT 1980, 82; EAMCET 1980; MNR 1981; DPMT 1982; KCET 1993]
Options:
A) Froth floatation process
B) Magnetic separation
C) Gravity separation
D) By hand picking
Show Answer
Answer:
Correct Answer: A
Solution:
Froth floatation method is based on the fact that the surface of sulphide ores is preferentially wetted by oil while that of gangue is wetted by water.