Q. The extraction and isolation of metals from ores involve the following steps:
I. Concentration of the ore.
II. Refining of metals.
III. Reduction of concentrated ore.
IV. Grinding of ore.
The option with correct sequence from the above steps will be

 178  200 General Principles and Processes of Isolation of Elements Report Error

Solution:

(d) The extraction and isolation of metals from ores involve the following steps:

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