Chemical Process problems
- 1. Epoxy resin
Options- A. is a good adhesive.
- B. is an elastomer.
- C. cannot be used for surface coatings.
- D. is a polyester. Discuss
Correct Answer: is a good adhesive.
- 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
Correct Answer: drilling of petroleum wells and pickling of steel sheets.
- 3. 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
Correct Answer: it reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop.
- 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
Correct Answer: CO
- 5. Styrene is produced from ethyl benzene by the process of
Options- A. dehydrogenation
- B. oxidation
- C. alkylation
- D. dehydration Discuss
Correct Answer: dehydrogenation
- 6. 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
Correct Answer: Pollution of water stream by mercury.
- 7. Paper pulp produced by kraft/sulphate process is
Options- A. bleached easily
- B. dull white in color
- C. strong fibrous
- D. dark colored Discuss
Correct Answer: strong fibrous
- 8. Frasch process is for
Options- A. making oxygen
- B. producing helium
- C. mining sulphur
- D. making nitrogen Discuss
Correct Answer: mining sulphur
- 9. Viscose rayon is chemically
Options- A. cellulose nitrate
- B. regenerated cellulose nitrate
- C. cellulose acetate
- D. regenerated cellulose acetate Discuss
Correct Answer: regenerated cellulose acetate
- 10. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
Options- A. exothermic
- B. endothermic
- C. catalytic
- D. autocatalytic Discuss
Correct Answer: endothermic
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