Which of the following does not contain oxygen? a. alkanes b. alcohols c. ketones d. esters ANS: a
2.
An organic compound with an OH functional group is a (n) a. aldehyde b. ketone c. ether d. alcohol ANS: d
3.
Rubbing alcohol is a. methanol, CH3OH b. 2-propanol, CH3CHOHCH3 c. ethanol, CH3CH2OH d. l-propanol, CH3CH2CH2OH ANS: b
4.
The maximum alcohol concentration in the preparation of ethanol by fermentation of grapes or other fruit is a. 50-60% b. l2% c. l00% d. 95% ANS: b
5.
What is the percent of ethanol in rum that is 140 proof? a. 35% b. 70% c. 280% d. 75% ANS: b
182
6.
Ethylene glycol, a dialcohol, is the main ingredient in a. tobacco humectants b. antifreeze c. denaturated alcohol d. gasohol ANS: b
7.
Which functional group contains a nitrogen atom? a. ketone b. ester c. amine d. carboxylic acid ANS: c
8.
The oxidation of primary alcohols produces a. carboxylic acids b. amines c. ketones d. esters ANS: a
9.
Which carboxylic acid is the substance responsible for the sting of an ant bite? a. butyric b. propionic c. acetic d. formic ANS: d
10.
The product of the reaction between a carboxylic acid and an alcohol is a. ester b. ketone c. aldehyde d. none of these ANS: a
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11.
The odor in many fruits is due to the presence of a. amines b. esters c. carboxylic acids d. alcohols ANS: b
12.
Which does not contain a nitrogen atom in its structure? a. amine b. nylon c. polyester d. amide ANS: c
13.
The small molecules used to synthesize polymers are called a. macromolecules b. monomers c. elastomers d. peptides ANS: b
14.
Which is not an addition polymer? a. Dacron b. Teflon c. polyethylene d. Styrofoam ANS: a
15.
Which type of polyethylene has the greatest amount of branched chains? a. LDPE b. HDPE c. CLPE d. none have any branches ANS: a
184
16.
Which characteristic functional group is present in almost all of the monomers that participate in addition polymerization? a. OH b. CHO c. C::C d. C—Cl ANS: c
17.
An addition polymer that finds use in fibers for rugs and fabrics is a. polypropylene b. PVC c. nylon d. polyacrylonitrile ANS: d
18.
Which polymer is made from the monomer, poly-cis-isoprene? a. vulcanized rubber b. polybutadiene rubber c. natural rubber d. neoprene rubber ANS: c
19.
Vulcanized rubber which was first produced by Goodyear in 1839 a. is poly-trans-isoprene b. contains short chains of sulfur atoms as crosslinks between polymers c. has chlorine atoms substituted for hydrogen atoms d. is a copolymer ANS: b
20.
Which is not a use of polyester polymer? a. textile fibers b. substitute tubing for human blood vessels c. Mylar film d. bulletproof windows in space helmets ANS: d
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21.
The discovery of Nylon is l935 was made by this DuPont employee a. W. Carothers b. S. Kwolek c. L. Baekeland d. C. Goodyear ANS: a
22.
Which is a polyamide? a. Kevlar b. Mylar c. Nylon d. Lexan ANS: c
23.
Substances that do not undergo a permanent change when stretched are called a. monomers b. elastomers c. polymers d. plastics ANS: b
24.
Most reinforced plastics are polymers containing a. steel wire b. aluminum wires c. mylar film d. glass fibers ANS: d
25.
Alcohol consumption produces blood levels that are linked to definite physiological effects. Which of the following is the correct pair for number of drinks and alcohol blood level? Some states define "intoxicated" as 0.10% a. 5 to 10 drinks; 0.05-0.15% alcohol by volume b. 5 to 10 drinks; 0.15-0.20% alcohol by volume c. 5 to 10 drinks; 0.30-0.40% alcohol by volume d. over 5 drinks; 0.50% alcohol by volume ANS: b
186
26.
Which is the most commonly recycled plastic? a. HDPE b. PET c. PS d. LDPE ANS: b
27.
Orlon has the polymeric chain structure CH2 CH shown: Which is the CN monomer structure? a. b. c. H 2 C CN CH2
n d. CH2 CH C N
H2 C CH C N
ANS: d
28.
Which polymer material occurs naturally? a. nylon b. dacron c. polycarbonates d. latex rubber ANS: d
29.
Polymerization is a(n) a. formation of large molecules out of little ones b. formation of small molecules out of large ones c. analysis of the chemical content of polymers d. effective means of producing molecules of intermediate size, but not very large ones ANS: a
187
30.
What is the role of an organic peroxide in the polymerization of ethylene? a. the peroxide is a copolymer b. the peroxide forms free radicals that initiate attack of double bonds c. the peroxide destroys free radicals which would stop the reaction d. the peroxide moderates the speed of the reaction, allowing for a more orderly process ANS: b
31.
Which is not a factor in the degree of chain branching in polyethylene? a. reaction temperature b. reaction pressure c. catalysis d. source of ethylene ANS: d
32.
Which of the following monomers contain a benzene ring (phenyl group) in the molecular structure? a. ethylene b. styrene c. vinyl chloride d. acrylonitrile ANS: b
33.
What element is used to form cross links between polymer chains in Vulcanized rubber? a. sulfur b. silicon c. carbon d. oxygen ANS: a
34.
How many double bonds per molecule are contained in the isoprene molecule? a. 0 b. 1 c. 2 d. 4 ANS: c
188
35.
Which is not true of poly-cis-isoprene? a. it stretches easily b. the methyl groups are on the same side of the molecular chain c. it occurs naturally d. it is also known as gutta-percha ANS: d
36.
What two monomers have been copolymerized to make an excellent synthetic rubber? a. styrene and ethylene b. styrene and butadiene c. ethylene and butadiene d. ethylene and vinyl chloride ANS: b
37.
Which of the following commercial materials is not a condensation polymer? a. Teflon b. Dacron c. Mylar d. nylon ANS: a
38.
In a condensation polymerization process, what happens to form the polymer chain? a. small molecules such as water are split out and monomers are linked b. small molecules such as water are required for the bonding link c. small molecules may be split out or required depending on whether an ester or an ether linkage is formed d. small molecules such as water are moved from one position to another ANS: a
39.
In the nylon structure, the polymeric chains are held together in a side-by-side fashion by a. sulfide bonds b. oxygen bridges c. hydrogen bonding d. carbon-carbon single bonds ANS: c
189
40.
A polycarbonate (Lexan or Merlon) is a plastic that is noted for its use in a. plumbing pipes b. bullet-proof "glass" c. clothing fabrics d. automobile paints ANS: b
41.
Which of the following molecules have been found in outer space? a. CH3CH2CN b. CH3OH c. CH3CH2OH d. all of these ANS: d
42.
What is the monomer in teflon? a. CF:::CF, difluoroacetylene b. CH2::CH2, ethylene c. CF2::CF2, tetrafluoroethylene d. CF3CF3, hexafluoroethane ANS: c
43.
Which of the following is an incorrect pairing? a. CH2::CHCH2CH2CH2CH2CH2CH3, alkene b. CH3OCH3, amine c. CH3CH2OH, alcohol d. (CH3)2CO, ketone ANS: b
44.
Which of the following contains a carbonyl group? a. alkanes b. alcohols c. ketones d. ethers ANS: c
190
45.
An organic compound with an NH functional group is a (n) a. amine b. ketone c. ether d. alcohol ANS: a
46.
The oxidation of secondary alcohols produces a. carboxylic acids b. amines c. ketones d. esters ANS: c
47.
Which carboxylic acid is known as vinegar? a. butyric b. propionic c. acetic d. formic ANS: c
48.
The odor of decaying flesh is due to the presence of a. amines b. esters c. carboxylic acids d. alcohols ANS: a
49.
Identify the addition polymer used in sewer pipes? a. polypropylene b. PVC c. nylon d. polyacrylonitrile ANS: b
191
50.
Identify the correct pair? a. CH3CH2CH3, alkene b. CH3OCH3, ether c. CH3CH2NH2, amide d. CH3COOH, aldehyde ANS: b
