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Bauxite is concentrated by
Options
(a) magnetic separation
(b) roasting
(c) froth floatation process
(d) chemical method
Correct Answer:
chemical method
Explanation:
Bauxite (Al₂O₃.2H₂O) is concentrated by chemical method. In this method bauxite is well digested with concentration sodium hydroxide which dissolves all the Al₂O₃ component in the ore to form a solution of sodium aluminate leaving behind the impurities.
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- Allergy is the state in which a person experiences
- The pH of 0.001 N acetic acid solution, which is 10% dissociated, is
- The anion, (Si₆O₁₈)¹²⁻ is present in
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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
- Anomalous behaviour of nitrogen is due to
- Allergy is the state in which a person experiences
- The pH of 0.001 N acetic acid solution, which is 10% dissociated, is
- The anion, (Si₆O₁₈)¹²⁻ is present in
- A no. of ionic compounds, e.g., AgCl, CaF₂, BaSO₄ are insoluable in water
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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