The CORRECT match is:Ores - Common extraction | vedclass

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Question

(D) The extraction of metals from their ores involves specific metallurgical processes:$A$. Copper pyrites $(CuFeS_2)$ is concentrated by froth floata

Vedclass · Accepted Answer

Red bauxite - Leaching followed by Electrolysis in dissolved molten $Na_3AlF_6$

Vedclass · Answer

(D) The extraction of metals from their ores involves specific metallurgical processes:$A$. Copper pyrites $(CuFeS_2)$ is concentrated by froth floatation,followed by roasting and smelting in a reverberatory furnace,not reduction by coke.$B$. Calamine $(ZnCO_3)$ is first calcined to $ZnO$ and then reduced by coke $(C)$,not $CO$.$C$. Haematite $(Fe_2O_3)$ is reduced by $CO$ in a blast furnace,but it is not concentrated by leaching.$D$. Red bauxite $(Al_2O_3 \cdot 2H_2O)$ is concentrated by leaching (Bayer's process) to obtain pure alumina,which is then reduced by electrolysis in molten cryolite $(Na_3AlF_6)$. This is the $CORRECT$ match.

The $CORRECT$ match is:
Ores - Common extraction method

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The $CORRECT$ match is:Ores - Common extraction method