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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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Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number
- Tert-butyl bromide on treatment with sodium methoxide yields
- Boron compounds behave as Lewis acid, because of their
- Tertiary butyl alcohol gives tertiary butyl chloride on treatment with
- SO₂ reacts with Cl in sunlight to form
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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