Question

Blister copper is refined by stirring molten
impure metal with green logs of wood
because such a would liberates hydrocarbon
gases (like CH4). This process X is called
and the metal contains impurities of Y is​

Answer 1

Answer:

X= polling, Y= Cu2O

Explanation:

The refining process of blister copper is known as polling.

The Cu2O   impurities are present in the copper metal.

In presence of heat of molten metals, the green logs liberate hydrocarbon gases which reduce copper oxide into copper.

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Answer 2

Answer:

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Explanation:

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