Which of the following combinations of ores and their primary concentration or beneficiation methods — Metallurgy and Isolation of Elements Chemistry Question

💡 Solution & Explanation

Cassiterite contains magnetic impurities (Wolframite) and is separated magnetically. Galena is a sulphide ore, naturally suited for froth flotation. Bauxite is concentrated chemically via leaching (Baeyer's/Hall's). Haematite is an oxide ore and is typically concentrated by gravity separation, not froth flotation.