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6. alkanes are
- polyunsaturated
- monounsaturated
- saturated
- unsaturated
7. ________ reacts with water to make __________
- alkanes, alcohol
- alkenes, alcohol
- alcohol, alkene
- alcohol, alkane
8. how do you test if the liquid is alkane or alkene
- put litmus paper in alkane and it will decolourise
- put alkene in bromine and it will decolourise
- put alkane in bromine and it will decolourise
- put litmus paper in alkene and it will decolourise
9. what condition is this taken place?
- 70 C, 70 atm, citric acid
- 300 C, 70 atm, phosphoric acid
- 70 C, 300 atm, HCL acid
10. tis process is called
- hydration
- cracking
- thirst
- dehydration
11. What is splitting up long chain hydrocarbons called?
- dehydration
- cracking
- hydration
- fractional distillation
12. Why do we need to crack alkenes?
- to make
- to make plastics
- to make methane
13. What catalyst is needed for cracking?
- porcelin chips
- phosphoric acid
- nickel catalyst
- HCL acid
14. where is the alkanes and alkenes collected in ?
- alkanes at the bottom of the test tube and alkenes at the top of the gas jar
- alkanes in the gas jar and alkenes in the bottom of the test tube
15. what state is the alkene and alkane found in
- alkane (l), alkene (g)
- alkane (g), alkene (l)
- alkane (s), alkene (l)
- alkane (l), alkene (s)
16. Saturated oils are less viscous then unsaturated
17. Monounsaturated means ______ double bonds, polyunsaturated means_______
- one , lots of
- lots of, lots of
- lots of, one
- one, one
18. which best describes thermosetting plastic?
- flexible, won
- rigid, won
- moulds, flexible, weak bonds between chain
- rigid, tough, moulds, crosslinks between chain
19. Why can't plastics rot?
- because they are non-biodegradeble
- because they recyclable
- because they melt
- because they are biodegradable
20. What is a polymer?
- lots of smale molecules joined together
- a small molecule
