NaCN is sometimes added in the froth floatation process as a depre | Filo
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Class 12

Chemistry

Metallurgy

General Principles and Processes of Isolation of Elements

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is sometimes added in the froth floatation process as a depressant when and minerals are expected because:

  1. forms soluble complex while form froth
  2. is precipitated while no effect on form froth
  3. forms soluble complex while form froth
  4. is never added in froth floatation process
Correct Answer: Option(a)
Solution: is used as a depressant in the separation and concentration of and ore. Here, acts as a depressant for but does not prevent from forming the froth.
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general principles and processes of isolation of elements
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