Discussion
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- Question
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
- Correct Answer
- 10 atm., 170-180°C
- 1. Producer gas consists mainly of
Options- A. CO, CO2 N2, H2
- B. CO, H2
- C. H2, CH4
- D. C2H2, CO2, H2 Discuss
- 2. All enzymes are made of
Options- A. fats
- B. carbohydrates
- C. proteins
- D. amino acids Discuss
- 3. 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
- 4. 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
- 5. __________ test is done to find out the softening point of bitumen.
Options- A. Impact
- B. Ball and ring
- C. Flame
- D. Viscosity 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
Chemical Process problems
Search Results
Correct Answer: CO, CO2 N2, H2
Correct Answer: proteins
Correct Answer: large quantity of coal can be processed.
Correct Answer: used in color discharge tube.
Correct Answer: Ball and ring
Correct Answer: cure pimples & dandruff.
Correct Answer: 50
Correct Answer: is not unfit for drinking purpose.
Correct Answer: none of these.
Correct Answer: polychloroprene
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