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- Question
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
- Correct Answer
- CO
- 1. 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
- 2. 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
- 3. Epoxy resin
Options- A. is a good adhesive.
- B. is an elastomer.
- C. cannot be used for surface coatings.
- D. is a polyester. Discuss
- 4. Neoprene is the trade name of
Options- A. polyurathane
- B. phenol formaldehyde
- C. polychloroprene
- D. styrene-butadiene rubber Discuss
- 5. 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
- 6. Styrene is produced from ethyl benzene by the process of
Options- A. dehydrogenation
- B. oxidation
- C. alkylation
- D. dehydration Discuss
- 7. Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?
Options- A. High cost of mercury.
- B. High specific gravity of mercury.
- C. Non-availability of high purity mercury.
- D. Pollution of water stream by mercury. Discuss
- 8. Paper pulp produced by kraft/sulphate process is
Options- A. bleached easily
- B. dull white in color
- C. strong fibrous
- D. dark colored Discuss
- 9. Frasch process is for
Options- A. making oxygen
- B. producing helium
- C. mining sulphur
- D. making nitrogen Discuss
- 10. Viscose rayon is chemically
Options- A. cellulose nitrate
- B. regenerated cellulose nitrate
- C. cellulose acetate
- D. regenerated cellulose acetate Discuss
Chemical Process problems
Search Results
Correct Answer: it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
Correct Answer: drilling of petroleum wells and pickling of steel sheets.
Correct Answer: is a good adhesive.
Correct Answer: polychloroprene
Correct Answer: none of these.
Correct Answer: dehydrogenation
Correct Answer: Pollution of water stream by mercury.
Correct Answer: strong fibrous
Correct Answer: mining sulphur
Correct Answer: regenerated cellulose acetate
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