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- Question
Catalyst used in Haber's process for ammonia production is
Options- A. reduced iron oxide
- B. nickel
- C. vanadium pentoxide
- D. silica gel
- Correct Answer
- reduced iron oxide
- 1. Heating a mixture of phosphate rock, coke and sand in an electric furnace produces
Options- A. phosphoric acid
- B. ammonium phosphate
- C. phosphorous
- D. superphosphate Discuss
- 2. Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
Options- A. carbonate (monohydrate)
- B. chloride
- C. thiosulphate
- D. bisulphite Discuss
- 3. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency
Options- A. increases
- B. decreases
- C. remains same
- D. is unpredictable Discuss
- 4. Which of these statement is correct?
Options- A. Conversion of quartz to tridymite is associated with 16% volume increase.
- B. Conversion of tridymite to crystoballite involves very large expansion in volume.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 5. Presence of a small amount of water in the organic systems can be determined by the __________ method.
Options- A. electrical conductivity
- B. polarimetry
- C. emission spectroscopy
- D. dielectric constant end loss factor Discuss
- 6. Feedstock for polymerisation is
Options- A. naphtha.
- B. cracked gases rich in C2 & C4 olefins.
- C. low boiling aromatics.
- D. none of these. Discuss
- 7. Small furnace draught is accurately measured by an inclined tube manometer, in which the manometric liquid used most commonly is
Options- A. water
- B. carbon tetrachloride
- C. paraffin
- D. ethylene glycol Discuss
- 8. Size reduction of __________ is accomplished in steam heated rollers and roll crushers.
Options- A. resins
- B. gums
- C. hard rubber
- D. waxes Discuss
- 9. Which of the following fertilisers is used as a cattle feed?
Options- A. Urea
- B. Calcium ammonium nitrate
- C. Superphosphate
- D. Ammonium sulphate Discuss
- 10. Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of
Options- A. fireclay
- B. silicon carbide
- C. corrundum
- D. siliceous fireclay Discuss
More questions
Correct Answer: phosphorous
Correct Answer: carbonate (monohydrate)
Correct Answer: increases
Correct Answer: neither (a) nor (b).
Correct Answer: dielectric constant end loss factor
Correct Answer: cracked gases rich in C2 & C4 olefins.
Correct Answer: paraffin
Correct Answer: hard rubber
Correct Answer: Urea
Correct Answer: silicon carbide
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