1.

Wolframite `(FeWO_(2))` present as an inpurity in cassiteric `(SaO_(2))` can be removed by the process ofA. zone refiningB. gravity separationC. electromagnetic separationD. froth flotation separation

Answer» Correct Answer - c
Electronomagnetic separaration can be used for separation when compound elther the one or tempurity is magnitude is nature .Wolfratent`(FeWO_(2) MnWO_(4))` is major magnetic ore ,is separated from the notunagnetic ore, cassierric `(SaO_(2))` by this method .


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