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.
covalent bonding
B.
high flammability
C.
low boiling point
D.
poor solubility in water
E.
high melting point
Question #2
In a molecule with a symmetrical arrangement of polar bonds, the overall molecule is
A.
nonpolar.
B.
reverse polar.
C.
somewhat polar.
D.
strongly 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.
highly ionized.
D.
charged.
E.
insulated.
Question #4
VSEPR theory predicts that simple carbon compounds will form bonds that are
A.
as close together as possible.
B.
pointed to the corners of a triangle.
C.
as far apart as possible.
D.
arranged in a straight line.
E.
pointed to the corners of a cube.
Question #5
The bond angles of tetravalent carbon are all approximately
A.
60°.
B.
45°.
C.
109°.
D.
102°.
E.
90°.
Question #6
As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond
A.
becomes inverted.
B.
increases.
C.
decreases.
D.
stays the same.
E.
reverses.
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.
inverse polarity
B.
weakly polar
C.
reversed polarity
D.
strongly polar
E.
nonpolar
Question #8
Which one of the following is NOT an organic substance?
A.
salt, sodium chloride
B.
coal
C.
silk
D.
an antibiotic
E.
nylon
Question #9
A hydrocarbon contains only the elements
A.
carbon, hydrogen, and nitrogen.
B.
carbon and oxygen.
C.
hydrogen and oxygen.
D.
carbon, hydrogen, and oxygen.
E.
carbon and hydrogen.
Question #10
The organic compounds are important for use in
A.
health and medicine
B.
material science (polymers)
C.
material science (polymers), health, medicine, and many other ways to improve our quality of life
D.
medicine and many other ways to improve our quality of life
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