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General Principles and Processes of Isolation of Elements — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryGeneral Principles and Processes of Isolation of Elements1 Mark
MCQ
The collecting agent in froth floatation process is:
  • ✓
    Sodium ethyl xanthate.
  • B
    Pine oil.
  • C
    Lime.
  • D
    Water.
✓

Answer

Correct option: A.
Sodium ethyl xanthate.
Collectors either chemically bond $($chemisorption$)$ on a hydrophobic mineral surface, or adsorb onto the surface through physisorption.
Collectors increase the natural hydrophobicity of the surface, increasing the separability of the hydrophobic and hydrophilic particles.
The collecting agent in froth floatation process is sodium ethyl xanthate.
Pine oil is also added in froth floatation but as frother.

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