CHEM 120 FINAL EXAM 3
1. Which is not a property of the aromatic compound benzene?
Its toxic, Its Flammable, or its a white solid.
Answer: Its a white solid
2. An alkane content 15 carbon atoms. What is its molecular formula?
Answer: - C15H32
3. The electrons on the double bond of an aromatic compound such as benzene
are able to more around the ring this ability os referred to as:
Answer: de-localization
4. The alkene shown is:
CH3
|
H3C-C=C-CH3
| CH3
Monosubstituted, disubstituted, trisubstituted, tetrasubstituted
Answer: Tetrasubsitituted
5. What is the condensed structure of the following compound:
OH
|
/\/\/\/
|
,Answer: OH
| CH3CH2CH2CH2CHCHCH2CH3
| CH3
6. Bonding pattern tha is NOT typical of carbon atoms in organic com-pounds?
Answer: |
---C---
/\
7. Molecular formula of a benzene ring?
Answer: C6H6
8. 3-ethyl-2-methylhexane
Answer:
H CH3 H H H H
||||||
H - C- C- C- C- C- C- H
||||||
H H | H H HCH2CH3
9. 1-chloro-3-methylbutane
Answer: Cl
\/\/
|
10. Describe constitutional isomers
Answer: Compounds with the same molecular formula, nut the different order of
attachment of atoms
11. Molecular formula of butane?
Answer: C4H10
, 12. CH2CH2CH2CH3
|
CH3CH2CHCH2CH3
Answer: 3-ethylheptane
13. Name of HC=CH
Answer: ethyne
14. Does 3-hexene exist as a cis-trans isomers?
Answer: True
15. H3C CH3
\ / C=C
/ \
H3C H
Answer: 2-methyl-2-butene
16. Structure and name of the product of the reaction
Pd, heat
CH3CH2CH=CH+H2 ------------ > ?
Answer: CH3CH2CH2CH3, Butane
17. The compound ORTHO-dichlorobenzene has a substituents on which car-bon
atoms of the benzene ring?
Answer: C1 and C2
18. Which reaction may be used to convert an alkene to an alkane?: hydrogenation
19. Br
\/\\/\
|
Answer: trans-2-bromo-3-hexene
1. Which is not a property of the aromatic compound benzene?
Its toxic, Its Flammable, or its a white solid.
Answer: Its a white solid
2. An alkane content 15 carbon atoms. What is its molecular formula?
Answer: - C15H32
3. The electrons on the double bond of an aromatic compound such as benzene
are able to more around the ring this ability os referred to as:
Answer: de-localization
4. The alkene shown is:
CH3
|
H3C-C=C-CH3
| CH3
Monosubstituted, disubstituted, trisubstituted, tetrasubstituted
Answer: Tetrasubsitituted
5. What is the condensed structure of the following compound:
OH
|
/\/\/\/
|
,Answer: OH
| CH3CH2CH2CH2CHCHCH2CH3
| CH3
6. Bonding pattern tha is NOT typical of carbon atoms in organic com-pounds?
Answer: |
---C---
/\
7. Molecular formula of a benzene ring?
Answer: C6H6
8. 3-ethyl-2-methylhexane
Answer:
H CH3 H H H H
||||||
H - C- C- C- C- C- C- H
||||||
H H | H H HCH2CH3
9. 1-chloro-3-methylbutane
Answer: Cl
\/\/
|
10. Describe constitutional isomers
Answer: Compounds with the same molecular formula, nut the different order of
attachment of atoms
11. Molecular formula of butane?
Answer: C4H10
, 12. CH2CH2CH2CH3
|
CH3CH2CHCH2CH3
Answer: 3-ethylheptane
13. Name of HC=CH
Answer: ethyne
14. Does 3-hexene exist as a cis-trans isomers?
Answer: True
15. H3C CH3
\ / C=C
/ \
H3C H
Answer: 2-methyl-2-butene
16. Structure and name of the product of the reaction
Pd, heat
CH3CH2CH=CH+H2 ------------ > ?
Answer: CH3CH2CH2CH3, Butane
17. The compound ORTHO-dichlorobenzene has a substituents on which car-bon
atoms of the benzene ring?
Answer: C1 and C2
18. Which reaction may be used to convert an alkene to an alkane?: hydrogenation
19. Br
\/\\/\
|
Answer: trans-2-bromo-3-hexene
