Physical Science

Chapter 24: Organic Compounds

Organic Compounds

1.
Unsaturated hydrocarbons contain __________.
A)only triple bonds
B)only double bonds
C)only single bonds between carbon atoms
D)at least one double or triple bond between carbon atoms
2.
Which of the following is a lipid?
A)fructose
B)starch
C)glucose
D)cholesterol
3.
Which of the following enables carbon to form so many different compounds?
A)Carbon atoms bond only to hydrogen atoms.
B)Carbon atoms can link together in different arrangements.
C)Carbon atoms will bond only to other carbon atoms.
D)Carbon forms only single bonds with other atoms.
4.
The monomers that make up DNA are called __________.
A)peptides
B)nuclei
C)amino acids
D)nucleotides
5.
A compound made up of only carbon and hydrogen atoms is called a(n) __________.
A)hydrocarbon
B)carbonate
C)isomer
D)saturated compound
6.
The small molecules that form the links of large molecular chains are called __________.
A)monomers
B)isomers
C)multimers
D)polymers
7.
How many electrons does carbon have in its outer energy level?
A)8
B)4
C)6
D)2
8.
__________ are compounds that have identical chemical formulas but different molecular structures and shapes.
A)Isolates
B)Isotopes
C)Inorganics
D)Isomers
9.
The process for the separation of petroleum compounds is called __________.
A)fractional fingerprinting
B)fractionating towers
C)polymer synthesis
D)fractional distillation
10.
Which of the following substances contains carboxyl groups?
A)citric acid
B)ethanol
C)ethane
D)methane
11.
Most compounds containing the element carbon are called __________.
A)organic
B)organisms
C)inorganic
D)carbonates
12.
Which of the following is a carbohydrate?
A)hemoglobin
B)DNA
C)butter
D)starch
13.
What is the difference between a protein and a peptide?
A)Proteins are peptides containing fewer than 100 amino acid monomers.
B)Proteins are peptides containing more than 100 amino acid monomers.
C)Peptides are made up of nucleotide monomers, while proteins are made up of amino acid monomers.
D)Peptides are linked by peptide bonds, while proteins are linked by protein bonds.
14.
What structure is found in all aromatic compounds?
A)benzene ring
B)hydroxyl group
C)methyl group
D)isomers
15.
What type of chemical bonds do saturated hydrocarbons contain?
A)single and double bonds
B)only single bonds
C)only double bonds
D)only triple bonds
16.
Which of the following is NOT obtained from petroleum?
A)nucleic acid
B)aspirin
C)saccharin
D)colored dye
17.
A(n) __________ is formed when - OH groups replace one or more hydrogen atoms in a hydrocarbon.
A)alcohol
B)aromatic compound
C)benzene ring
D)organic acid
18.
Large molecules made up of smaller molecules linked together are called __________.
A)polymers
B)monomers
C)isomers
D)multimers
19.
__________ are formed from amino acids.
A)Fats
B)Carbohydrates
C)Lipids
D)Proteins
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