Extraction of Metals - Result Question 2

####2. The idea of froth floatation method came from a person $X$ and this method is related to the process $Y$ of ores. $X$ and $Y$, respectively, are

(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

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Solution:

  1. The idea of froth floatation method came from a person ‘washer woman’ $(X)$ and this method is related to the process concentration $(Y)$ of ores. This method is based upon the preferential wetting properties with the frothing agent (collector) and water.


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