Discussion
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- Question
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
- Correct Answer
- ZnO
- 1. __________ 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
- 2. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
Options- A. exothermic
- B. endothermic
- C. catalytic
- D. autocatalytic Discuss
- 3. Viscose rayon is chemically
Options- A. cellulose nitrate
- B. regenerated cellulose nitrate
- C. cellulose acetate
- D. regenerated cellulose acetate Discuss
- 4. Frasch process is for
Options- A. making oxygen
- B. producing helium
- C. mining sulphur
- D. making nitrogen Discuss
- 5. Paper pulp produced by kraft/sulphate process is
Options- A. bleached easily
- B. dull white in color
- C. strong fibrous
- D. dark colored Discuss
- 6. 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
- 7. Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Options- A. adsorbs
- B. oxidises
- C. reduces
- D. converts Discuss
- 8. The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
Options- A. dilute H2SO4
- B. oleum
- C. ultraviolet light
- D. none of these Discuss
- 9. Haemoglobin is a/an
Options- A. amino acid
- B. biological catalyst
- C. protein
- D. enezyme Discuss
- 10. Which of the following is not a raw material used for the manufacture of ordinary glass?
Options- A. Iron oxide
- B. Soda ash
- C. Limestone
- D. Silica Discuss
Chemical Process problems
Search Results
Correct Answer: Solvay
Correct Answer: endothermic
Correct Answer: regenerated cellulose acetate
Correct Answer: mining sulphur
Correct Answer: strong fibrous
Correct Answer: 15 - 20
Correct Answer: adsorbs
Correct Answer: oleum
Correct Answer: protein
Correct Answer: Iron oxide
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