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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.
Related Questions: - Impurities present in the ore react to form a fusible substance known as
- For a first order reaction, the time taken to reduce the initial concentration
- Increase in boiling point of a sucrose solution is 0.1 K, then what is increases
- Which is purified by steam distillation
- Azeotropic mixture of HCl and H₂O has
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Impurities present in the ore react to form a fusible substance known as
- For a first order reaction, the time taken to reduce the initial concentration
- Increase in boiling point of a sucrose solution is 0.1 K, then what is increases
- Which is purified by steam distillation
- Azeotropic mixture of HCl and H₂O has
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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