Name: 
 

Midterm 1 Formative Assessment



Matching (Value 10)
 
 
Match each item with the correct statement below.
a.
substituent
e.
asymmetric carbon
b.
structural isomers
f.
trans configuration
c.
geometric isomers
g.
cis configuration
d.
stereoisomers
 

 1. 

atom or group of atoms that can take the place of a hydrogen in a parent hydrocarbon molecule
 

 2. 

compounds that have the same molecular formula, but the atoms are joined in a different order
 

 3. 

arrangement in which substituted groups are on the same side of a double bond
 

 4. 

molecules in which atoms are joined in the same order but differ in the arrangements of their atoms in space
 

 5. 

compounds that differ in the orientation of groups around a double bond
 

 6. 

carbon atom to which four different atoms or groups are attached
 
 
Match each item with the correct statement below.
a.
aromatic compound
d.
lignite
b.
aliphatic hydrocarbon
e.
bituminous coal
c.
anthracite coal
 

 7. 

any straight-chain or branched-chain alkane, alkene, or alkyne
 

 8. 

hard coal, having a carbon content of over 80%
 

 9. 

brown coal, having a carbon content of approximately 50%
 

 10. 

soft coal, having a carbon content of 70–80%
 

Multiple Choice (Value 22)
Identify the choice that best completes the statement or answers the question.
 

 11. 

How many covalent bonds can each carbon atom form?
a.
1
c.
3
b.
2
d.
4
 

 12. 

Which of the following is a condensed structural formula for propane?
a.
Cmc012-1.jpgHmc012-2.jpg
c.
CHmc012-6.jpgCHmc012-7.jpgCHmc012-8.jpg
b.
CHmc012-3.jpgCHmc012-4.jpgCHmc012-5.jpg
d.
CHmc012-9.jpgCHmc012-10.jpgCHmc012-11.jpgCHmc012-12.jpg
 

 13. 

What is the physical state of the smallest alkanes at room temperature?
a.
gas
c.
solid
b.
liquid
d.
gas or liquid
 

 14. 

What is the increment of change in a series of straight-chain alkanes?
a.
CH
c.
CHmc014-2.jpg
b.
CHmc014-1.jpg
d.
CHmc014-3.jpg
 

 15. 

The condensed structural formula for 2,2,3-trimethylbutane is ____.
a.
CHmc015-1.jpgCHmc015-2.jpg(CHmc015-3.jpg)CH(CHmc015-4.jpg)mc015-5.jpg
c.
CHmc015-11.jpgC(CHmc015-12.jpg)mc015-13.jpgCH(CHmc015-14.jpg)mc015-15.jpg
b.
CHmc015-6.jpgC(CHmc015-7.jpg)mc015-8.jpgC(CHmc015-9.jpg)mc015-10.jpg
d.
CHmc015-16.jpgCHmc015-17.jpgCH(CHmc015-18.jpg)C(CHmc015-19.jpg)mc015-20.jpg
 

 16. 

In which of the following liquids is hexane most likely to dissolve?
a.
aqueous ammonium hydroxide
c.
rubbing alcohol
b.
vinegar
d.
octane
 

 17. 

An organic compound that contains only carbon and hydrogen and at least one carbon-carbon triple bond is classified as an ____.
a.
alkane
c.
alkyne
b.
alkene
d.
arene
 

 18. 

How are hydrogen atoms arranged in ethene?
a.
in the same plane, separated by angles of 120mc018-1.jpg
b.
in different planes, separated by angles of 120mc018-2.jpg
c.
in the same plane, separated by angles of 180mc018-3.jpg
d.
in different planes, separated by angles of 180mc018-4.jpg
 

 19. 

Which of the following compounds is a structural isomer of butane?
a.
2-methylbutane
c.
2-methylpropane
b.
2,2-dimethylbutane
d.
2,2-diethylpropane
 

 20. 

A structural isomer of hexane is ____.
a.
2,2-dimethylbutane
c.
benzene
b.
cyclohexane
d.
2-methylpentene
 

 21. 

Alkanes do not have geometric isomers because the carbon atoms in their carbon-carbon bonds are ____.
a.
double bonds
c.
free to rotate
b.
quite polar
d.
asymmetric
 

 22. 

Which hydrocarbon rings are most common in nature?
a.
rings with 3 or 4 carbon atoms
c.
rings with 5 or 6 carbon atoms
b.
rings with 4 or 5 carbon atoms
d.
rings with 6 or 7 carbon atoms
 

 23. 

Which of the following molecules does NOT display resonance?
a.
benzene
c.
m-xylene
b.
phenylethane
d.
cyclohexane
 

 24. 

Which of the following is NOT a fraction obtained from crude oil?
a.
ammonia
c.
gasoline
b.
natural gas
d.
kerosene
 

 25. 

Which of the following is NOT a product obtained from the distillation of coal tar?
a.
benzene
c.
coke
b.
phenol
d.
toluene
 

 26. 

Which halocarbon has the highest boiling point?
a.
1-chloropropane
c.
1,2,3-trichloropropane
b.
2-chloropropane
d.
2-dichloropropane
 

 27. 

Which of the following compounds is trichloromethane?
a.

mc027-1.jpg
c.

mc027-3.jpg
b.

mc027-2.jpg
d.

mc027-4.jpg
 

 28. 

Which of the following compounds is a glycol?
a.
CHmc028-1.jpg¾CHmc028-2.jpg¾CHmc028-3.jpg¾CHmc028-4.jpgOH
c.
HOHmc028-9.jpgC¾CHmc028-10.jpg¾CHmc028-11.jpg¾CHmc028-12.jpgOH
b.
CHmc028-5.jpg¾CHmc028-6.jpg¾O¾CHmc028-7.jpg¾CHmc028-8.jpg
d.
CHmc028-13.jpg¾CHmc028-14.jpg¾CHmc028-15.jpg¾CHO
 

 29. 

Which pair of formulas represents the same compound?
a.
Cmc029-1.jpgHmc029-2.jpgOH; CHmc029-3.jpgOCHmc029-4.jpg
c.
(CHmc029-9.jpg)mc029-10.jpgCO; CHmc029-11.jpgOCHmc029-12.jpg
b.
CHmc029-5.jpgCHmc029-6.jpgCHO; CHmc029-7.jpgCHmc029-8.jpgCOOH
d.
CHmc029-13.jpgCOH(CHmc029-14.jpg)mc029-15.jpg; (CHmc029-16.jpg)mc029-17.jpgCOH
 

 30. 

In an addition reaction, which bond of the reactant is broken?
a.
carbon—carbon single bond
c.
carbon—carbon double bond
b.
carbon—hydrogen single bond
d.
carbon—hydrogen double bond
 

 31. 

Which of these compounds would you expect to be most soluble in water?
a.
CHmc031-1.jpgCHmc031-2.jpgCl
c.
CHmc031-6.jpgCHmc031-7.jpgCHmc031-8.jpgCHmc031-9.jpg
b.
CHmc031-3.jpgCHmc031-4.jpgCHmc031-5.jpgF
d.
CHmc031-10.jpgCHmc031-11.jpgCHmc031-12.jpgOH
 

 32. 

Which carbon skeleton represents an ether?
a.

C¾C¾C¾O¾C¾C¾C
c.

mc032-2.jpg
b.

mc032-1.jpg
d.

none of the above
 

Short Answer (Value 3)
 

 33. 

How many more hydrogen atoms does a cyclohexane molecule have than a benzene molecule?
 

 34. 

Write the general structure for ester compounds.
 

 35. 

Complete the condensation polymerization reaction between two amino acids to form a peptide bond:
sa035-1.jpg
 

Numeric Response (Value 3)
 

 36. 

How many arrangements are possible for two methyl groups with respect to a rigid double bond?

 

 37. 

How many forms of coal are there?

 

 38. 

What percent of the composition of natural gas is methane?

 

Essay (Value 4)
 

 39. 

Describe in your own words what the difference is between unsaturated and saturated hydrocarbons. What is a saturated compound saturated with?
 

 40. 

Why is benzene not as reactive as other six-carbon alkenes?
 



 
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