Chem V21 - Organic and Biochemistry » Fall 2021 » Introduction to Organic Compunds PreLab Assignment
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Question #1
Which of the following is NOT typical of most organic compounds?
A.
high melting point
B.
poor solubility in water
C.
covalent bonding
D.
low boiling point
E.
high flammability
Question #2
In a molecule with a symmetrical arrangement of polar bonds, the overall molecule is
A.
somewhat polar.
B.
strongly reverse polar.
C.
nonpolar.
D.
reverse polar.
E.
highly polar.
Question #3
Generally, a solution of an organic compound in water will be electrically
A.
nonconductive.
B.
highly conductive.
C.
charged.
D.
highly ionized.
E.
insulated.
Question #4
VSEPR theory predicts that simple carbon compounds will form bonds that are
A.
pointed to the corners of a triangle.
B.
as close together as possible.
C.
pointed to the corners of a cube.
D.
as far apart as possible.
E.
arranged in a straight line.
Question #5
The bond angles of tetravalent carbon are all approximately
A.
102°.
B.
90°.
C.
109°.
D.
60°.
E.
45°.
Question #6
As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond
A.
stays the same.
B.
increases.
C.
becomes inverted.
D.
reverses.
E.
decreases.
Question #7
Carbon tetrachloride has a polar C-Cl bond. What is the overall polarity of the carbon tetrachloride molecule? Assume Carbon is 2.5 and Chlorine 3.0 Pure covalent = 0-0.4 Polar covalent = 0.5 - 1.9 Ionic = > 2.0
A.
weakly polar
B.
nonpolar
C.
strongly polar
D.
inverse polarity
E.
reversed polarity
Question #8
Which one of the following is NOT an organic substance?
A.
nylon
B.
salt, sodium chloride
C.
silk
D.
an antibiotic
E.
coal
Question #9
A hydrocarbon contains only the elements
A.
carbon and oxygen.
B.
carbon, hydrogen, and oxygen.
C.
hydrogen and oxygen.
D.
carbon, hydrogen, and nitrogen.
E.
carbon and hydrogen.
Question #10
The organic compounds are important for use in
A.
health and medicine
B.
material science (polymers), health, medicine, and many other ways to improve our quality of life
C.
material science (polymers)
D.
medicine and many other ways to improve our quality of life
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