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6. Which method is renewable and produces dilute solution?
- Evaporation
- Fermentation
- Direct hydration
7. What are the products when ethene is burned with a sufficient supply of oxygen?
- Carbon dioxide and water
- Carbon monoxide and water
- Carbon monoxide
8. What is the general formula for Alkanes?
9. What is the general formula for Alkenes?
10. What is a saturated compound?
- A compound in which all the bonds are triple
- A compound in which all the bonds are single
- A compound in which all the bonds are double
11. What is the molecular formula of propane?
12. What method is fast and requires high pressures and temperatures?
- Direct hydration
- Fermentation
- Evaporation
13. What will all alkenes do to bromine?
- Decolourise it
- Turn it blue
- Make it evaporate
14. What is a homologous series?
- A series of organic compounds that have different formulas, and similar chemical reactions.
- A series of organic compounds that have the same general formula, and similar chemical reactions.
- A series of physical compounds that have the same general formula, and similar chemical reactions.
15. What is a general formula?
- A formula that states the percentage the atoms of each element in a particular homologous series.
- A formula that states the ratio of the atoms of each element in a particular homologous series.
- A formula that states the ratio of the atoms of the same element in a particular homologous series.
16. What is the equation for the combustion of ethanol?
- C2H5OH + 3O2 ---> 2CO2 + 3H2O
- C2H5OH + 2O2 ---> 2CO2 + 3H2O
- C2H4OH + 3O2 ---> 2CO2 + 3H2O
17. What is the molecular formula of methane?
18. What is the equation for the dehydration of ethanol?
- C2H5OH ---> C2H4 + H2O
- C2H5OH ---> C2H3 + H2O
- CH5OH ---> C2H4 + H2O
19. What type of reaction do alkenes under go with halogens?
- Addition
- Precipitation
- Substitution
20. What is the equation for direct hydration?
- C2H4 + H2O ---> C2H5OH
- C2H3 + H2O ---> C2H5OH
- C2H4 + HO ---> C2H5OH