Exams › JEE Advanced › Chemistry
The concentration of cassiterite ore is based on which principle?
- Adsorption phenomenon
- Froth floatation
- Electromagnetic separation
- Liquification
Correct answer: Electromagnetic separation
Solution
Cassiterite (SnO2) is concentrated by electromagnetic separation because SnO2 is weakly magnetic. The ore is separated from non-magnetic gangue by passing over a magnetic roller. Froth flotation is used for sulphide ores.
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