Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator ?

Related Mcqs:

1. Pine oil and Cresylic acid are used as ______________ in the froth floatation process?

   A. Frother
   B. Collector
   C. Depressor
   D. Conditioner

2. Xanthates are used in the froth floatation process as a/an _______________________?

   A. Conditioner
   B. Frother
   C. Collector
   D. Activator

3. Pine oil used in froth floatation technique acts as a/an_____________________?

   A. Collector
   B. Modifier
   C. Frother
   D. Activator

4. Froth floatation is the most suitable for treating ____________________?

   A. Iron ores
   B. Sulphide ores
   C. Quartzite
   D. None of these

5. In froth floatation, chemical agent added to cause air adherence is called___________________?

   A. Collector
   B. Frother
   C. Modifier
   D. Activator

6. Which of the following mineral dressing operations is termed as ‘comminution’?

   A. Panning
   B. Spiralling
   C. Tabling
   D. None of these

7. Which of the following is not a non-metalliferous mineral ?

   A. Calcite
   B. Fluorspar
   C. Quartz
   D. Cassiterite

8. In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called _____________ is produced?

   A. Concentrate
   B. Tailing
   C. Middling
   D. None of these

9. Crushing of mineral particles is accomplished in a ‘cage mill’, when one or more alloy steel bars are revolved in opposite directions. It is a type of ______________ mill?

   A. Impact
   B. Roll
   C. Vibratory
   D. None of these

10. Fluid medium used in the classification technique of mineral beneficiation is_________________?

    A. Air
    B. Water
    C. Either A. or B.
    D. Neither A. nor B.