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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: - When aniline is treated with sodium nitrite and hydrochloric acid at 0⁰C, it gives
- Which of the following complex has square planar structure
- The conductivity of strong electrolyte
- Increasing order of rms velocities of H₂,O₂,N₂ and HBr is
- In which of the following pairs of molecules/ions, the central atoms have
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When aniline is treated with sodium nitrite and hydrochloric acid at 0⁰C, it gives
- Which of the following complex has square planar structure
- The conductivity of strong electrolyte
- Increasing order of rms velocities of H₂,O₂,N₂ and HBr is
- In which of the following pairs of molecules/ions, the central atoms have
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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