JEE Main20238 Apr 2023Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

Which of the following metals can be extracted through alkali leaching technique?

Options

Correct answer

A. Sn

Step-by-step solution

Leaching is often used if the ore is soluble in some suitable solvent. The ore of tin metal is cassiterite( SnO 2 ). Cassiterite is readily soluble in alkali. The reaction is shown below. SnO 2 + 2 NaOH + 2 H 2 O → Na 2 Sn ( OH ) 6

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