Additional practice problems
1) A reaction that releases energy as it occurs is classified as a(n) ________.
A) decomposition reaction
B) oxidation-reduction reaction
C) endothermic reaction
D) exothermic reaction
E) explosion
1)
2) If a reaction is exothermic, the energy level of the reactants is ________.
A) the same as that of the products
B) possibly lower, possibly higher than that of the products
C) lower than that of the products
D) higher than that of the products
E) none of the above
2)
3) Two solutions are seperated by a semipermeable membrane. Solution A is 10% NaCl and solution
B is 1% NaCl. What will happen to the side containing solution A?
A) it will increase in volume
B) it will decrease in volume
C) it will have a lower osmotic pressure
D) it will explode
3)
4) A red blood cell will most likely undergo hemolysis (swelling and bursting) in
A) 10% NaCl
B) 5% NaCl.
C) 0.9% NaCl.
D) water.
4)
5) A solution with the same osmotic pressure as the blood is ______________________ to the blood cells.
6) A solution that has an osmotic pressure less than that of red blood cells is ______________________ to the blood
cells.
7) A blood cell will likely _________________________ in a 10% NaCl solution.
8) The process by which a semipermeable membrane allows water molecules, small molecules, and
ions to pass through while retaining large molecules or cells is called
A) semipermeablism.
B) osmosis.
C) reverse osmosis.
D) osmotic pressure.
E) dialysis.
8)
9) How many valence electrons does carbon have?
A) one
B) two
C) three
9)
10) Carbon atoms always have how many covalent bonds?
A) one
B) two
C) three
D) four
D) four
11) An alkene is a carbon compound that contains a _________________ bond.
12) An alkyne is a carbon compound that contains a _________________ bond.
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E) five
E) five
10)
13) What functional group is contained in the following compound?
A) alkyne
B) alkene
C) aldohol
13)
D) alcohol
E) aldehyde
14) What functional group is contained in the following compound?
14)
CH3 -CH2-CH=CH-CH3
A) alkyne
B) alkene
C) alkane
D) alcohol
E) aldehyde
15) What is the name for a one carbon alkyl (hydrocarbon) substituent?
A) pentyl
B) methyl
C) butyl
D) ethyl
E) propyl
16) What is the name for a two carbon alkyl group?
A) pentyl
B) methyl
C) propyl
E) butyl
D) ethyl
17) What is the name of the alkyl group, -CH2- CH2 - CH3?
A) propane
B) ethane
C) methyl
15)
16)
17)
D) ethyl
E) propyl
18) What is the name of the following three carbon alkyl group?
18)
CH3 -CH-CH3
A) methyl
B) iso-ethyl
C) ethyl
19) The IUPAC name of CH3 CH
D) propyl
CH CH3 is
B) 1-butene.
C) 2-butene.
A) butene.
20) The IUPAC name for CH3 CH2 C
A) 2-pentyne.
B) 2-propene.
C) pentyne.
D) 1-methylbutyne.
E) 3-pentyne.
E) iso-propyl
19)
D) 2-butyne.
E) 2-butane.
20)
C CH3 is
21) What is the IUPAC name for the following compound?
CH3
Cl
CH3 - C H - C - CH = CH
C H3
_____________________________________
C H3
2
22) Which of the following pairs of compounds are cis-trans isomers?
A)
22)
and
B)
and
C)
and
D)
and
23) What is the name of the compound shown below?
23)
A) 2-pentene
B) cis-3-pentene
C) trans-2-pentene
D) trans-3-pentene
E) cis-2-pentene
24) In the IUPAC naming system, an aldehyde is named by replacing the -e suffix of the name of the
corresponding alkane with
A) one.
B) al.
C) ene.
D) yne.
E) ol.
24)
25) Name each of the following compounds:
25)
A)
CH3
CH3- C -CH3
__________________________________
OH
B) CH3CHO
__________________________________
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26) Name each of the following compounds:
A)
26)
OH
CH3-CH2 -C- CH3
__________________________________
C H3
B) CH3 - CH -CHO
C H3
__________________________________
C)
__________________________________
D) CH3 - CH-CH2 -OH
C H3
__________________________________
27) A compound that contains the ring structure of benzene is
A) a cycloalkane.
B) an alkane.
C) a hydrocarbon.
28) All of the carbon-carbon bonds in benzene are
A) single bonds.
C) either single or double.
B) double bonds.
D) identical.
D) aromatic.
27)
28)
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
29) All alkenes show cis-trans isomerism.
29)
30) In a trans alkene, the groups are on the same side of the double bond.
30)
31) 1,1-dichloroethene displays cis/trans isomerism.
31)
32) 1,2-dichloroethene displays cis/trans isomerism.
32)
33) 1-butene displays cis/trans isomerism.
33)
34) 2-butene displays cis/trans isomerism.
34)
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