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Home Chemical Engineering Mass Transfer See What Others Are Saying!
  • Question
  • Which of the following is the most suitable for extraction in a system having very low density difference?


  • Options
  • A. Mixer-settler extractor
  • B. Centrifugal extractor
  • C. Pulsed extractor
  • D. Packed extraction tower

  • Correct Answer
  • Centrifugal extractor 


  • More questions

    • 1. Buna-S is also known as

    • Options
    • A. teflon
    • B. PTFE
    • C. SBR
    • D. polycrylates
    • Discuss
    • 2. Viscosity of atmospheric air may be about __________ centipoise.

    • Options
    • A. 0.015
    • B. 1.5
    • C. 15
    • D. 150
    • Discuss
    • 3. Refined acetic acid storage vessel are made of

    • Options
    • A. copper
    • B. aluminium
    • C. high carbon steel
    • D. nickel
    • Discuss
    • 4. Which is a basic refractory?

    • Options
    • A. Fireclay
    • B. Silica
    • C. Chrome magnesite
    • D. None of these
    • Discuss
    • 5. Soaking pits are meant for heating steel

    • Options
    • A. ingots
    • B. coils
    • C. sheets
    • D. slabs
    • Discuss
    • 6. Percentage of heavy water in ordinary water is around

    • Options
    • A. 0.015
    • B. 7.54
    • C. 0.71
    • D. 32.97
    • Discuss
    • 7. Density of low density polythene is about __________ gm/c.c.

    • Options
    • A. 0.38
    • B. 0.56
    • C. 0.81
    • D. 0.91
    • Discuss
    • 8. Rain coats are made of

    • Options
    • A. neoprene
    • B. PVC
    • C. polyurathane
    • D. SBR
    • Discuss
    • 9. CaCO3 contains __________ percent of Ca by weight.

    • Options
    • A. 40
    • B. 48
    • C. 96
    • D. 12
    • Discuss
    • 10. Pick out the material having minimum Rittinger's number.

    • Options
    • A. Calcite
    • B. Pyrite
    • C. Quartz
    • D. Galena
    • Discuss


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