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Question
Chemistry
Hydraulic washing is one of the important procedures of concentration of ores. It is based on
Q. Hydraulic washing is one of the important procedures of concentration of ores. It is based on
1665
238
General Principles and Processes of Isolation of Elements
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A
magnetic separation
B
separation by using collectors and stabilizers
C
gravity separation
D
digesting the powdered ore with a concentrated solution of NaOH
Solution:
In hydraulic washing, the ore is washed with a spray of water so that lighter impurities are washed away and heavier ore particles settle down.