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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
- The hybridisation of carbon in diamond ,graphite and acetylene is in the order of
- Among the following , the one which reacts most readily with ethanol is
- For the reaction , X₂O₄(l) → 2XO₂(g), ΔG is
- The number of moles of KMnO₄ that will be needed to react with one mole of
- A compound,containing only carbon,hydrogen and oxygen,has a molecular weight
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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