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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: - The correct order of electron affinity is
- Elements of which of the following groups will form anions most readily ?
- By passing air over red hot coke the gas obtained is
- Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat
- Which of the following is not soluble in NaOH
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The correct order of electron affinity is
- Elements of which of the following groups will form anions most readily ?
- By passing air over red hot coke the gas obtained is
- Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat
- Which of the following is not soluble in NaOH
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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