Q39.In the leaching of alumina from bauxite, the ore expected to leach out in the process by reacting with NaOH is : (1) TiO2 (2) Fe2O3 (3) ZnO (4) SiO2
What This Question Tests
This question tests the understanding of the Bayer's process for alumina leaching, specifically identifying which impurities in bauxite (being acidic or amphoteric) would also react with NaOH.
Concepts Tested
📚 NCERT Sections This Tests
4.14 — Describe The Preparation Of Potassium Dichromate From Iron Chromite Ore.
Chemistry Class 11 · Chapter 4
4.14 Describe the preparation of potassium dichromate from iron chromite ore. What is the effect of increasing pH on a solution of potassium dichromate?
2.1 — Arrange The Following Metals In The Order In Which They Displace Each Other
Chemistry Class 11 · Chapter 2
2.1 Arrange the following metals in the order in which they displace each other from the solution of their salts. Al, Cu, Fe, Mg and Zn.
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Leaching of alumina from bauxite
- Year
- 2021
- Shift
- 25 Jul Shift 1
- Q Number
- Q39
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 6: General Principles and Processes of Isolation of Elements
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