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6. Which of the four methods of catalytic reformation uses only hydrogen?
- Hydrocracking
- Dehydrogenation
- Isomerisation
- Dehydrogenation or aromatisation
7. What is the catalyst in FCC?
- Zeolite, containing mineral clays
- catalyst with huge surface area to volume ration
- Nickel catalyst
- Co and Iron with promoter components
8. List in order products of FCC?
- alkene, alkane or dihydrgen, carbonium ion, then carbenium ion
- carbonium ion, alkane or dihydrogen, carbenium ion, alkene
- carbenium ion, carbonium ion, alkane or dihydrogen, alkene
- alkane or dihydrogen, carbenium ion, carbonium ion, alkene
9. What is wrong with heavy chain alkanes that we need to crack them?
- not very reactive
- Non renewable and little remaininget
- expensive
- labour intensive
10. What are the 3 main petrochemicals?
- Ethene, propene, benzene
- Ethene, butene, hexene
- naphtha, ethene, hexene
- Bezene. hydrogen gas and methane
11. What is S good for? And by what process?
- None of the solutions
- use in detergents and antibacterial soaps
- making sufuric acid and fertilisers
- For chemical warefare
12. Which method of catalytic reforming just converts cyclic compound to an aromatic producing hydrogen only (coproduct)?
- Isomerisation
- hydrocracking
- Dehydrogenation
- Aromatisation
13. How is desalting done?
- by reacting with hydrogen in the presence of nickel catalyst
- By reacting with an acid to form water and base
- by physical process followed by electrostatic separation
- by reacting with steam, then fractional distillation
14. Why do unbranched alkanes crack faster than branched alkanes?
- branched chains have less surface contact areas compared to unbranched
- Catalysts reject branched chain due to poor size
- branched chains have less intermolecular forces
15. Which of the four methods of catalytic reforming requires Pt and then hydrogen?
- hydrocracking
- Aromatisation
- Dehydrogenation
- isomerisation
16. Why do we need to remove sulphur from crude oil?
- it will accelerate the process of corrosion only
- Create carcinogens
- Will creat sulfuric acid when undergone certain processes and poison catalysts
- it will deactivate the catalysts used in the further processes only
17. What are the 3 types of cracking? List in terms of which is lastest
- fluid catalytic cracking, steam cracking, thermal cracking
- thermal cracking, steam cracking, fluid catalytic cracking
- steam cracking, thermal cracking, fluid catalytic cracking
- steam cracking, fluid catalytic cracking, thermal cracking
18. By what process is sulphur removed and then recovered?
- Hydrodesulphurisation and Fischer Tropsch process respectively
- hydrodesulphurisation and Clause process respectively
- Clause and hydrodesulphurisation respectively
- Fischer Tropsch process and steam formation
19. By what process can naphthas be converted into cyclic alkanes? Why do we do this?
- Gasification to form syngas
- Catalytic reforming, higher octane value
- Steam reformation, so we can produce hydrogen
- Fischer Tropsch process, so it can be turned into short chain alkanes