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- Question
Frasch process is for
Options- A. making oxygen
- B. producing helium
- C. mining sulphur
- D. making nitrogen
- Correct Answer
- mining sulphur
- 1. Paper pulp produced by kraft/sulphate process is
Options- A. bleached easily
- B. dull white in color
- C. strong fibrous
- D. dark colored Discuss
- 2. 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
- 3. Styrene is produced from ethyl benzene by the process of
Options- A. dehydrogenation
- B. oxidation
- C. alkylation
- D. dehydration Discuss
- 4. 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
- 5. 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
- 6. Viscose rayon is chemically
Options- A. cellulose nitrate
- B. regenerated cellulose nitrate
- C. cellulose acetate
- D. regenerated cellulose acetate Discuss
- 7. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
Options- A. exothermic
- B. endothermic
- C. catalytic
- D. autocatalytic Discuss
- 8. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
Options- A. Ostwald's
- B. Bosch
- C. Solvay
- D. Haber's Discuss
- 9. Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
Options- A. CaO
- B. MnO2
- C. ZnO
- D. FeS Discuss
- 10. Sucrose content in the raw juice extracted from sugar cane is about __________ percent.
Options- A. 1 - 2
- B. 15 - 20
- C. 50 - 60
- D. 80 - 85 Discuss
Chemical Process problems
Search Results
Correct Answer: strong fibrous
Correct Answer: Pollution of water stream by mercury.
Correct Answer: dehydrogenation
Correct Answer: CO
Correct Answer: it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
Correct Answer: regenerated cellulose acetate
Correct Answer: endothermic
Correct Answer: Solvay
Correct Answer: ZnO
Correct Answer: 15 - 20
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