Q47.In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with: (1) SO2 (2) Fe2 O3 (3) Cu2 O (4) CO
What This Question Tests
This question assesses knowledge of the specific self-reduction step in the extraction of copper from its sulphide ore, where cuprous sulphide is oxidized by cuprous oxide to yield copper.
Concepts Tested
Formulas Used
Cu₂S + 2Cu₂O → 6Cu + SO₂
📚 NCERT Sections This Tests
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.
5.14 — What Is The Coordination Entity Formed When Excess Of Aqueous Kcn Is
Chemistry Class 11 · Chapter 5
5.14 What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g) is passed through this solution?
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?
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Extraction of Copper
- Year
- 2018
- Shift
- 16 Apr Online
- Q Number
- Q47
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 6: General Principles and Processes of Isolation of Elements
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