Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202316 May 2023Morning ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

The correct statements regarding froth floatation method in metallurgy are I. Used for the purification of sulphide ores II. Used for the roasting of sulphide ores III. It is based on the relative densities of gangue and ore particles IV. It is based on the difference in the wetting properties of gangue and ore particles in frothing agent and water

Options

  1. AI & IV only
  2. BII & III only
  3. CII & IV only
  4. DI & III only

Correct answer

A. I & IV only

Step-by-step solution

The froth floatation process is used for the concentration (purification) of ores, specially sulphide ores. It is based on the principle of relative preference of wetting of gangue and ore particles in water and frothing agent. Thus, I and IV are correct.

Practice General Principles and Processes of Isolation of Metals on Quantrex Academy →

More from General Principles and Processes of Isolation of Metals

The metal purified by Mond process is X. The number of unpaired electrons in X is 2025Which of the following are carbonate ores ? I. Siderite II. Kaolinite III. Calamine IV. Sphalerite 2025Which of the following methods is useful for producing semiconductor grade metals of high purity ? 2025Match the following List-I (Process) List-II (Metal) A) Hall-Heroult process I) Ti B) Mond process II) In C) van-Arkel process III) Al D) Zone refining process IV) Ni The correct a 2025Consider the following: Statement-I : In the extraction of Al by Hall-Heroult process, pure Al ₂ O ₃ mixed with Na ₃ ~AlF ₆ lowers its melting point and increases conductivity. Sta 2025Which of the following reactions is an example of roasting ? 2025In the extraction of iron from haematite, the impurity (x) of the ore is removed in the form of ' y ', what are x and y respectively? 2025Which of the following is used as froth stabilizer in froth floatation process? 2025 Full General Principles and Processes of Isolation of Metals list All AP EAMCET PYQs