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:
Correct Option: , 3
Solution:
The idea of froth floatation method came from washerwoman and this process is related to concentration of sulphide ores.
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.