- 1. What is the primary industrial source of carbon disulfide in the environment?
A) Sulfur recovery plants
B) Cellophane manufacturing
C) Rayon factories
D) Carbon black production
- 2. Which byproduct is emitted during the production of carbon disulfide?
A) Carbon dioxide
B) Hydrogen sulfide
C) Sulfur dioxide
D) Carbon monoxide
- 3. As of 2004, how much carbon disulfide was emitted per kilogram of rayon produced?
A) 250 g
B) 100 g
C) 30 g
D) 0.341 g
- 4. In which country is rayon production increasing as of 2004?
A) China
B) USA
C) Korea
D) Japan
- 5. How much carbon disulfide is emitted per kilogram of carbon black produced?
A) 50 g
B) 250 g
C) 30 g
D) 0.341 g
- 6. What percentage of carbon disulfide is destroyed by incinerators in Japanese and Korean carbon black production?
A) 50%
B) 80%
C) 40%
D) 99%
- 7. When carbon disulfide is used as a solvent, what is the emission rate in Japan?
A) 80%
B) 99%
C) 20%
D) 40%
- 8. Which rayon production method does not use carbon disulfide?
A) Solvent spinning
B) Viscose process
C) Lyocell process
D) Vulcanization
- 9. Why is the lyocell process not widely used as of 2018?
A) It is illegal to operate
B) It is more expensive than the viscose process
C) It produces lower quality rayon
D) It uses more carbon disulfide
- 10. What mental health condition was famously associated with early rubber factory workers exposed to carbon disulfide?
A) Bipolar disorder
B) Depression
C) Psychosis
D) Schizophrenia
- 11. What was a historical use of carbon disulfide in the US related to animals?
A) Insect repellent
B) Pesticide for crops
C) Fertilizer additive
D) Burrow poison for ground squirrels
- 12. When was the first large epidemiological study of rayon workers conducted in the US?
A) Around 1900
B) Late 1930s
C) Late 1960s
D) 1980s
- 13. What health risks were identified in data released in the late 1960s regarding carbon disulfide exposure?
A) Lung cancer and asthma
B) Skin lesions and blindness
C) Heart attacks and strokes
D) Liver failure and kidney damage
- 14. Which company worked to prevent the publication of data regarding heart attack risks in the UK?
A) Viscose Corp
B) Rayon Inc.
C) Courtaulds
D) Rubber Industry Group
- 15. To what level were average concentrations in sampled rayon plants reduced in the 1980s compared to the 1950s?
A) 20–30 mg/m3
B) 5–10 mg/m3
C) 100 mg/m3
D) 250 mg/m3
- 16. What kind of complexes does CS2 form as a ligand?
A) pi complexes
B) sigma complexes
C) delta complexes
D) phi complexes
- 17. What is the common name for the polymer formed by CS2 under high pressure?
A) Rayon base
B) Carbonic soot
C) Sulfur polymer
D) Bridgman's black
- 18. Who discovered the polymer known as Bridgman's black?
A) Louis Pasteur
B) Robert Boyle
C) Charles Goodyear
D) Percy Williams Bridgman
- 19. What type of electrical material is the polymer 'Bridgman's black'?
A) conductor
B) insulator
C) superconductor
D) semiconductor
- 20. Carbon disulfide is a valued intermediate in the chemical synthesis of which substance?
A) methane
B) carbon tetrachloride
C) sulfuric acid
D) chloroform
- 21. Which organosulfur compounds, used in froth flotation for metal extraction, are synthesized from carbon disulfide?
A) sulfonamides
B) xanthates
C) thioethers
D) thiols
- 22. What is a drug example derived from the dithiocarbamates that carbon disulfide is a precursor to?
A) Penicillin
B) Aspirin
C) Metam sodium
D) Ibuprofen
- 23. Which specific reaction is noted for using carbon disulfide?
A) Diels-Alder reaction
B) Grignard reaction
C) Friedel-Crafts reaction
D) Barking dog reaction
- 24. What specific set of neurological and psychiatric symptoms is caused by acute CS2 poisoning?
A) viscose toxicity
B) encephalopathia sulfocarbonica
C) carbon sulfiditis
D) neuro-sulfur syndrome
- 25. Occupational exposure to carbon disulfide is associated with which health condition?
A) anemia
B) diabetes
C) arthritis
D) stroke
- 26. Which of these is a listed reproductive symptom of carbon disulfide exposure?
A) increased fertility
B) immobile or deformed sperm
C) testicular cancer
D) early menopause
- 27. What is one of the niche uses of carbon disulfide regarding grain storage?
A) fireproofing
B) fumigation
C) insulation
D) moisture absorption
- 28. What is the chemical formula of carbon disulfide?
A) CS4
B) CS2
C) C2S
D) CS
- 29. Who first prepared carbon disulfide in 1796?
A) Antoine Lavoisier
B) Alexander Marcet
C) Wilhelm August Lampadius
D) Jöns Jacob Berzelius
- 30. What name did Wilhelm August Lampadius give to carbon disulfide?
A) Ether sulfide
B) Carbonous sulfur
C) Volcanic gas
D) Liquid sulfur
- 31. What is the primary physical state of pure carbon disulfide?
A) Liquid
B) Gas
C) Solid
D) Plasma
- 32. What color is pure carbon disulfide?
A) Red
B) Colorless
C) Yellowish
D) Black
- 33. Which planet was found to have possible traces of CS2 in March 2024?
A) Mars
B) TOI-270 d
C) Venus
D) Jupiter
- 34. What product is formed when amines react with carbon disulfide?
A) Dithiocarbamates
B) Xanthates
C) Thiophosgene
D) Trithiocarbonates
- 35. What is the combustion product of carbon disulfide when reacted with oxygen?
A) Carbon monoxide
B) Sulfur dioxide
C) Sulfur trioxide
D) Carbon monosulfide
- 36. What is the result of the reaction between sodium sulfide and carbon disulfide?
A) Trithiocarbonate
B) Carbon tetrachloride
C) Dithiocarbamate
D) Xanthate
- 37. Which intermediate is formed during the chlorination of carbon disulfide to produce carbon tetrachloride?
A) Sodium trithiocarbonate
B) Disulfur dichloride
C) Thiophosgene
D) Cellulose
- 38. At what temperature is natural gas used to manufacture CS2 in the presence of catalysts?
A) 800–1000 °C
B) 1200 °C
C) 500 °C
D) 600 °C
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