Q40.Which of the following ore is concentrated using group 1 cyanide salt? JEE Main 2021 (24 Feb Shift 1) JEE Main Previous Year Paper (1) Malachite (2) Calamine (3) Siderite (4) Sphalerite
What This Question Tests
This question probes the application of the froth flotation process, specifically the use of cyanide salts as depressants to selectively concentrate sulfide ores like Sphalerite.
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.
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?
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Froth flotation process
- Year
- 2021
- Shift
- 24 Feb Shift 1
- Q Number
- Q40
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 6: General Principles and Processes of Isolation of Elements
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