A. Carbon reduction B. Carbon monoxide reduction C. Aluminothermic process D. Electrolytic reduction
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A. Fusible B. Not easily reduced by the carbon C. Not easily reduced by the hydrogen D. Strongly basic
A. High electronegative B. High reactivity C. Low reactivity D. Low density
A. Electrolysis B. Metal displacement C. Smelting D. Roasting
A. Always same as that of molten metal B. Always higher than molten metal C. Always less than molten metal D. None of these
A. Concentration B. Refining C. Smelting D. None of these
A. Gold B. Silver C. Copper D. Sodium
A. Oxide ores B. Sulphide ores C. Silicate ores D. Carbonate ores
A. Zn and Pb B. Fe and Hg C. Fe and C D. C and Pt
A. Hoop’s process B. Bayer’s process C. Serpeak’s process D. Hall’s process