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- Question
Neoprene is the trade name of
Options- A. polyurathane
- B. phenol formaldehyde
- C. polychloroprene
- D. styrene-butadiene rubber
- Correct Answer
- polychloroprene
- 1. 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
- 2. 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
- 3. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Options- A. 10
- B. 25
- C. 50
- D. 98 Discuss
- 4. 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
- 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. Epoxy resin
Options- A. is a good adhesive.
- B. is an elastomer.
- C. cannot be used for surface coatings.
- D. is a polyester. Discuss
- 7. The main use of HCl is in the
Options- A. drilling of petroleum wells and pickling of steel sheets.
- B. manufacture of cationic detergent.
- C. treatment of spent fuel of nuclear reactor.
- D. none of these. Discuss
- 8. Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because
Options- A. its calorific value is very less.
- B. tar neutralises the residual acids present in pitch.
- C. it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
- D. all (a), (b) and (c). Discuss
- 9. Which is the main reducing agent during production of iron from iron ore in a blast furnace?
Options- A. C
- B. CO
- C. CO2
- D. H2 Discuss
- 10. Styrene is produced from ethyl benzene by the process of
Options- A. dehydrogenation
- B. oxidation
- C. alkylation
- D. dehydration Discuss
Chemical Process problems
Search Results
Correct Answer: none of these.
Correct Answer: is not unfit for drinking purpose.
Correct Answer: 50
Correct Answer: cure pimples & dandruff.
Correct Answer: 10 atm., 170-180°C
Correct Answer: is a good adhesive.
Correct Answer: drilling of petroleum wells and pickling of steel sheets.
Correct Answer: it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
Correct Answer: CO
Correct Answer: dehydrogenation
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