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Which of the following metals can be extracted through alkali leaching technique ? (A) Au (B) Cu (C) — JEE Mains Chemistry Past Papers Chemistry Question

Question

Which of the following metals can be extracted through alkali leaching technique ? (A) Au (B) Cu (C) Sn (D) Pb

Answer: C

💡 Solution & Explanation

Cossiterite ore [SnO2] is Amphoteric in nature. This property is used during hydrometallurgy of cassiterite ore. During alkali leaching NaOH/KOH can be used.

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