Name ________________
Naming Straight Chain Hydrocarbons
1. Hydrocarbons are compounds that contain
1)
2)
3)
4)
carbon, only
carbon and hydrogen, only
carbon, hydrogen, and oxygen, only
carbon, hydrogen, oxygen, and nitrogen, only
2. Which formula represents a hydrocarbon?
1) CH 3CH 2CH 2CHO
2) CH 3CH 2CH 2CH 3
3) CH 3CH 2CH 2COOH
4) CH 3CH 2COOCH 3
3. Which structural formula represents a molecule of butane?
1)
3)
2)
4)
4. Which hydrocarbon is a member of the alkane series?
1)
3)
2)
4)
5. Which is the structural formula of methane?
1)
2)
3)
4)
Chemistry!
Date:_________________
Naming Straight Chain Hydrocarbons
6. Given the structural formula:
What is the IUPAC name of this compound?
1) propane
2) propene
3) propanone
4) propanal
7. Which formula represents butane?
1) CH 3CH 3
2) CH 3CH 2CH 3
3) CH 3CH 2CH 2CH 3
4) CH 3CH 2CH 2CH 2CH 3
8. The compound C 4H10 belongs to the series of hydrocarbons with the general formula
1) CnH2n
2) Cn H 2n+2
3) CnH2n–2
4) CnH2n–6
9. In the alkane series, each molecule contains
1) only one double bond
2) two double bonds
3) one triple bond
4) all single bonds
10. Which compound is a member of the alkane series?
1) C2H 6
2) C3H6
3) C4H6
4) C6H6
11. What is the correct name for the substance represented by the structural formula below?
1) acetylene
2) benzene
3) ethene
4) propene
12. Which molecule contains ten hydrogen atoms?
1) butane
2) butene
3) propane
4) propene
13. A double carbon-carbon bond is found in a molecule of
1) pentane
2) pentene
3) pentyne
4) pentanol
14. A molecule of butane and a molecule of 2-butene both have the same total number of
1) carbon atoms
2) hydrogen atoms 3) single bonds
4) double bonds
15. A straight-chain hydrocarbon that has only one double bond in each molecule has the general formula
1) CnH2n – 6
2) CnH2n – 2
3) Cn H 2n
4) CnH2n + 2
3) C4 H10
4) C5 H12
3) C4H 8
4) C4H10
16. Which formula represents an alkene?
1) C2 H6
2) C3 H 6
17. What is the correct formula for butene?
1) C4H4
2) C4H6
Chemistry!
Naming Straight Chain Hydrocarbons
18. Which structural formula represents 2-pentyne?
1)
3)
4)
2)
19. A carbon-carbon triple bond is found in a molecule of
1) butane
2) butanone
3) butene
4) butyne
3) C4H8
4) C4H10
20. Which compound is an alkyne?
1) C2H 2
2) C2H4
Chemistry!
Answer Key
Naming Straight Chain Hydrocarbons
1.
2
2.
2
3.
3
4.
3
5.
4
6.
2
7.
3
8.
2
9.
4
10.
1
11.
3
12.
1
13.
2
14.
1
15.
3
16.
2
17.
3
18.
4
19.
4
20.
1
Chemistry!