Extraction of Metals - Result Question 2
####2. The idea of froth floatation method came from a person
(2019 Main, 12 April I)
(a) fisher woman and concentration
(b) washer woman and concentration
(c) fisher man and reduction
(d) washer man and reduction
Show Answer
Solution:
- The idea of froth floatation method came from a person ‘washer woman’
