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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.
Related Questions: - p-Nitrobromobenzene can be converted to p-nitroaniline by using NaNH₂.
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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
- p-Nitrobromobenzene can be converted to p-nitroaniline by using NaNH₂.
- Which of the following oxidation states are the most characteristic for lead
- Among the following the least thermally stable is
- Acetone reacts with Grignard reagent to form
- Boron is unable to form BF₆³⁻ because of
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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