logo

CuriousTab

CuriousTab

Chemical Process problems


  • 1. Neon gas is

  • Options
  • A. flammable in nature.
  • B. used in color discharge tube.
  • C. filled in lamps having tungsten filament.
  • D. all (a), (b) and (c).
  • Discuss
  • 2. In the Lurgi coal gasifier

  • Options
  • A. coking coals cannot be used.
  • B. low carbon conversion efficiency is achieved.
  • C. entrainment of solids is higher.
  • D. large quantity of coal can be processed.
  • Discuss
  • 3. All enzymes are made of

  • Options
  • A. fats
  • B. carbohydrates
  • C. proteins
  • D. amino acids
  • Discuss
  • 4. Producer gas consists mainly of

  • Options
  • A. CO, CO2 N2, H2
  • B. CO, H2
  • C. H2, CH4
  • D. C2H2, CO2, H2
  • Discuss
  • 5. In sulphate pulp manufacture, the pressure and temperature in the digestor is

  • Options
  • A. 10 atm., 800 °C
  • B. 10 atm., 170-180°C
  • C. 1 atm., 170 - 180°C
  • D. l atm., 800°C
  • Discuss
  • 6. Sulphur addition in soap is done to

  • Options
  • A. improve the soap texture.
  • B. cure pimples & dandruff.
  • C. fasten lather formation.
  • D. increase its cleansing action.
  • Discuss
  • 7. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

  • Options
  • A. 10
  • B. 25
  • C. 50
  • D. 98
  • Discuss
  • 8. Hard water

  • Options
  • A. does not affect the lather formation by soap.
  • B. is not unfit for drinking purpose.
  • C. pollutes the water stream.
  • D. all (a), (b) and (c).
  • Discuss
  • 9. The chamber process is

  • Options
  • A. preferred over contact process for producing 98 to 100% H2SO4 and various oleums.
  • B. non-catalytic and operates only on pyrites.
  • C. a batch process for directly producing high strength (98 to 100%) H2SO4.
  • D. none of these.
  • Discuss
  • 10. Neoprene is the trade name of

  • Options
  • A. polyurathane
  • B. phenol formaldehyde
  • C. polychloroprene
  • D. styrene-butadiene rubber
  • Discuss

First 2 3 4