Question

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:
(A) washer woman and concentration (B) fisher woman and concentration
(C) fisher man and reduction (D) washer man and reduction

Answer 1

Explanation:

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:

(A) washer woman and concentration✓✓

(B) fisher woman and concentration

(C) fisher man and reduction (D) washer man and reduction

Answer 2

Answer:

(A) It was a German Washer Woman which discovered concentration properties when using special frothing agents,etc

and, hence froth floatation was discovered