12th Grade > Chemistry
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS MCQs
Total Questions : 11
| Page 2 of 2 pages
Answer: Option B. -> False
:
B
Red Bauxite contains Al2O3.2H2O +Fe2O3 (major impurity) + SiO2 +TiO2
After calcination, organic matter, volatile substances and moisture are removed. The calcine is then leached with 45 % NaOH solution at about 150∘C where
Note that only TiO2 and Fe2O3 are filtered out.
:
B
Red Bauxite contains Al2O3.2H2O +Fe2O3 (major impurity) + SiO2 +TiO2
After calcination, organic matter, volatile substances and moisture are removed. The calcine is then leached with 45 % NaOH solution at about 150∘C where
Note that only TiO2 and Fe2O3 are filtered out.
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