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Electrometallurgy

35 Carbon red...

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35 Carbon reduction process is not commercially applicable for which of the following set of oxides to extract the respective metal? ZnO, Fe2O3,Al2O3,SnO2,MgO A ZnO, Fe2O3,SnO2 B ZnO, SnO2,MgO C MgO, Al2O3 D. MgO, SnO2,Al2O3

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Q. Carbon reduction process is not commercially applicable for which of the following set of oxides to extract the respective metal?

Z n O

F e_{2} O_{3}

A l_{2} O_{3}

S n O_{2}

M g O

Q. Classify the following oxides into acidic, basic and amphoteric.

C a O

M g O

C O_{2}

S O_{3}

N a_{2} O

Z n O

A l_{2} O_{3}

F e_{2} O_{3}

Classify the following oxides into three types and name the types.

CaO, MgO, CO₂ , SO₃, Na₂O, ZnO, Al₂O₃ , Fe₂O₃

Q. Find the number of amphoteric oxide(s) from the following

N i O, A l_{2} O_{3}, B_{2} O_{3}, P b O_{2}, Z n O, M g O

Q. Consider the given oxides

C O, N a_{2} O, A l_{2} O_{3}, M g O, C O_{2}, Z n O, S O_{2}

The total number of basic oxides in the given box is

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