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

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