Concentration of ore is necessary to remove unwanted particles , so which of the following option is/are INCORRECT in terms of concentration methods.

Question

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(A) Incorrect – Bauxite purification uses the Bayer process, and NaOH dissolves Al₂O₃, not specifically Fe₂O₃.

(B) Incorrect – In wolframite concentration, magnetic wolframite is separated from non-magnetic cassiterite. The statement reverses the magnetic nature.

(C) Incorrect – Hydraulic washing is based on the difference in density, not chemical properties.

(D) Incorrect – Sodium/potassium ethyl xanthate acts as a collector, not a froth stabilizer.

Hence, all are incorrect: A, B, C, D.

Chemistry - Metallurgy Question with Solution | TestHub

Options:(select one or more)

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