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.   low boiling point
C.   poor solubility in water
D.   high flammability
E.   covalent bonding
Question #2
In a molecule with a symmetrical arrangement of polar bonds, the overall molecule is
A.   reverse polar.
B.   nonpolar.
C.   somewhat polar.
D.   highly polar.
E.   strongly reverse polar.
Question #3
Generally, a solution of an organic compound in water will be electrically
A.   charged.
B.   highly ionized.
C.   highly conductive.
D.   nonconductive.
E.   insulated.
Question #4
VSEPR theory predicts that simple carbon compounds will form bonds that are
A.   as far apart as possible.
B.   as close together as possible.
C.   pointed to the corners of a triangle.
D.   pointed to the corners of a cube.
E.   arranged in a straight line.
Question #5
The bond angles of tetravalent carbon are all approximately
A.   60°.
B.   102°.
C.   90°.
D.   45°.
E.   109°.
Question #6
As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond
A.   becomes inverted.
B.   increases.
C.   reverses.
D.   stays the same.
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.   reversed polarity
B.   weakly polar
C.   strongly polar
D.   inverse polarity
E.   nonpolar
Question #8
Which one of the following is NOT an organic substance?
A.   silk
B.   nylon
C.   salt, sodium chloride
D.   an antibiotic
E.   coal
Question #9
A hydrocarbon contains only the elements
A.   hydrogen and oxygen.
B.   carbon, hydrogen, and oxygen.
C.   carbon and hydrogen.
D.   carbon, hydrogen, and nitrogen.
E.   carbon and oxygen.
Question #10
The organic compounds are important for use in
A.   material science (polymers), health, medicine, and many other ways to improve our quality of life
B.   health and medicine
C.   medicine and many other ways to improve our quality of life
D.   material science (polymers)

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