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NEET
Exam
NEET
Subject
Chemistry
Chapter
General Principles and Processes of Isolation of Metals

NEET · Chemistry · General Principles and Processes of Isolation of Metals

Which of the following equations correctly represents a step in the...

Which of the following equations correctly represents a step in the Bayer's Process for extracting alumina from bauxite ores associated with silica?( in the above question )

Options

  1. AAl2O3+ 2NaOH + 3H2O → 2Na[Al(OH)4]
  2. BSiO2+ 2NaOH → Na2[Si(OH)6]
  3. C2Na[Al(OH)4] - (heat) → Al2O3+ 2NaOH + 3H2O
  4. DNa2[Si(OH)6] - (heat) → SiO2+ 2NaOH + 3H2O

Correct answer

C. 2Na[Al(OH)4] - (heat) → Al2O3+ 2NaOH + 3H2O

Step-by-step solution

Correct Option is : (C)
2Na[Al(OH)4] - (heat) → Al2O3+ 2NaOH + 3H2O
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