Q41.The role of depressants in 'Froth Floation method' is to JEE Main 2022 (26 Jun Shift 2) JEE Main Previous Year Paper (1) selectively prevent one component of the ore (2) reduce the consumption of oil for froth from coming to the froth. formation. (3) stabilize the froth. (4) enhance non-wettability of the mineral particles.
What This Question Tests
This question tests the knowledge of the specific function of depressants in the froth flotation process for selective separation of sulphide ores.
Concepts Tested
📚 NCERT Sections This Tests
5.27 — Discuss Briefly Giving An Example In Each Case The Role Of Coordination
Chemistry Class 11 · Chapter 5
5.27 Discuss briefly giving an example in each case the role of coordination compounds in: (i) biological systems (iii) analytical chemistry (ii) medicinal chemistry and (iv) extraction/metallurgy of metals.
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?
7.21 — Name The Reagents Used In The Following Reactions:
Chemistry Class 12 · Chapter 7
7.21 Name the reagents used in the following reactions: (i) Oxidation of a primary alcohol to carboxylic acid. (ii) Oxidation of a primary alcohol to aldehyde. (iii) Bromination of phenol to 2,4,6-tribromophenol. (iv) Benzyl alcohol to benzoic acid. (v) Dehydration of propan-2-ol to propene. (vi) Butan-2-one to butan-2-ol.
📋 Question Details
- Chapter
- Metallurgy
- Topic
- Froth flotation method
- Year
- 2022
- Shift
- 26 Jun Shift 2
- Q Number
- Q41
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 6: General Principles and Processes of Isolation of Elements
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