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

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