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Earthly particles in an ore are removed from heavier metal ore using water in:
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Gravity separation/levigation / hydraulic washing: All these methods are based on the difference in densities of the metallic ore and gangue particles. Powdered ore is treated with a stream of running water when the lighter gangue particles are washed away and heavier ore particles are left behind.
In leaching, a suitable reagent (not water) only dissolves the ore leaving behind the impurities. Thus, leaching is a chemical method of separation / concentration of the ore from impurities.
Option A,B and D are correct.
In leaching, a suitable reagent (not water) only dissolves the ore leaving behind the impurities. Thus, leaching is a chemical method of separation / concentration of the ore from impurities.
Option A,B and D are correct.
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| Question Text | Earthly particles in an ore are removed from heavier metal ore using water in: |
| Answer Type | Text solution:1 |
| Upvotes | 150 |
