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Blister copper is refined by stirring mo...

Blister copper is refined by stirring moltem impure metal with green logs of wood because such a wood liberated hydrocarbon gases like `(CH_(4))`. The process X is called _____ and the Metal contains impurity of Y is ____:

A

X=cupellation, Y=`CuO_(2)`

B

X=poling, Y=`Cu_(2)O`

C

X=poling, Y=CuO

D

X=cupellation, Y=CuO

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Blister copper is refined by stirring molten impure metal with green logs of wood because such a wood liberates hydrocarbon gases (like CH_4 ). This process X is called ________ and the metal contains impurities of Y is __________ .

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