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

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