13. Methane is a component of natural gas. What is the common use of methane?
a. Disinfectant
b. medicine
C. fuel
d. cleaning agent
14. Which hydrocarbon compound has a double bond in the molecule?
a. Octane
b. Methane
c. Ethene
d. Ethyne
15. How many types of bonds are present in this hydrocarbon compound in #14?
a. 1
b. 2
C. 3
d. 4
16. Which alkane will most likely have a high boiling point?
a. Propane
b. Pentane
c. Butane
d. Hexane
17. Which hydrocarbon is commonly used as fuel for LPG (liquefied petroleum gas)?
a. Methane
b. Pentane
c. Hexane
d. Octane
18. How many particles are there in one mole of any kind of substance?
a. 3.02 x 1023
b. 3.01 X 1024
c. 6.02 x 1023
d. 6.02 x 1024
19. These are hydrocarbons with one or more carbon-carbon double bonds in their structures.
a. Alkenes
b. Alkanes
c. Alkynes
d. a and c
20. These are hydrocarbon compounds with all single bonds in the compounds.
a. Alkenes
b. Alkanes
c. Alkynes
d. b and c
21. What happens to the boiling point of hydrocarbon compounds when the number of carbon atoms increases?
a. Remains the same
b. decreases
c. increases
d. increases then decreases
22. To which group of hydrocarbon does the molecule with the structure H-C=C-H belong?
a. Alkane
b. alkyne
C. alkene
d. a and c
23. These are hydrocarbons that contain at least one carbon-carbon triple bond
a. Alkenes
b. Alkanes
c. Alkynes
d. a and b
24. If the general formula of the compound is CnH2n+2, what is the formula of butane if n=4
a. C4H10
b. C.Hg
c. C4H
d. C4H12
a. Disinfectant
b. medicine
C. fuel
d. cleaning agent
14. Which hydrocarbon compound has a double bond in the molecule?
a. Octane
b. Methane
c. Ethene
d. Ethyne
15. How many types of bonds are present in this hydrocarbon compound in #14?
a. 1
b. 2
C. 3
d. 4
16. Which alkane will most likely have a high boiling point?
a. Propane
b. Pentane
c. Butane
d. Hexane
17. Which hydrocarbon is commonly used as fuel for LPG (liquefied petroleum gas)?
a. Methane
b. Pentane
c. Hexane
d. Octane
18. How many particles are there in one mole of any kind of substance?
a. 3.02 x 1023
b. 3.01 X 1024
c. 6.02 x 1023
d. 6.02 x 1024
19. These are hydrocarbons with one or more carbon-carbon double bonds in their structures.
a. Alkenes
b. Alkanes
c. Alkynes
d. a and c
20. These are hydrocarbon compounds with all single bonds in the compounds.
a. Alkenes
b. Alkanes
c. Alkynes
d. b and c
21. What happens to the boiling point of hydrocarbon compounds when the number of carbon atoms increases?
a. Remains the same
b. decreases
c. increases
d. increases then decreases
22. To which group of hydrocarbon does the molecule with the structure H-C=C-H belong?
a. Alkane
b. alkyne
C. alkene
d. a and c
23. These are hydrocarbons that contain at least one carbon-carbon triple bond
a. Alkenes
b. Alkanes
c. Alkynes
d. a and b
24. If the general formula of the compound is CnH2n+2, what is the formula of butane if n=4
a. C4H10
b. C.Hg
c. C4H
d. C4H12
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Answers & Comments
Methane
CH4 is the chemical formula for methane, which is a chemical compound (one carbon atom bonded to four hydrogen atoms). It's a group-14 hydride, the simplest alkane, and natural gas's main ingredient. Methane is an economically desirable fuel because to its relative abundance on Earth, yet extracting and storing it offers technical problems due to its gaseous nature under typical temperature and pressure settings.
Methane is naturally occurring and generated by both geological and biological processes both below ground and beneath the seafloor. Methane clathrates, which are found beneath the seafloor, are the largest methane reservoir. Atmospheric methane occurs when methane reaches the surface and the atmosphere.
Source of methane? use of methane?
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