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Electromagnetic separation is used in the concentration of
Options
(a) copper pyrites
(b) bauxite
(c) cassiterite
(d) cinnabar
Correct Answer:
cassiterite
Explanation:
Electromagnetic separation is used when either the ore or the impurities associated with it are magnetic in nature . For example, Cassiterite (SnO₂, tinstone) an ore of tin (non – magnetic) is separated from impurities of ferrous tungstate(wolframite,FeWO₄) which are magnetic in nature.
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Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of hydrogen atom in the ground state is 0.53 Å. The radius
- What is the mass of precipitate formed when x mL of solution is mixed with another
- The rate of reaction between two reactants A and B decreases by a factor of
- Which one of the following does not react with water even under red hot condition
- Surface water contains
Topics: Surface Chemistry and Isolation of Elements (88)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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