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1 | |
Generally organic compounds are typically: |
| | A) | Soluble in water, have low boiling points, covalent |
| | B) | Ionic, soluble in water, flammable |
| | C) | Flammable, covalent, soluble in water |
| | D) | Covalent, flammable, non-conductors |
| | E) | Non-covalent, inflammable, ionic |
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2 | |
The first organic compound synthesized from inorganic components by chemists was: |
| | A) | Carbonic acid |
| | B) | Urea |
| | C) | Carbon dioxide |
| | D) | Methane |
| | E) | Ammonium cyanate |
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3 | |
The C--C--C bond angles in a saturated hydrocarbon is typically: |
| | A) | 120° |
| | B) | 90° |
| | C) | 109.5° |
| | D) | 60° |
| | E) | 180° |
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4 | |
As the n in H(CH2)nH decreases the melting points ______ and boiling points ______: |
| | A) | Increase, increase |
| | B) | Increase, decrease |
| | C) | Decrease, increase |
| | D) | Decrease, decrease |
| | E) | The melting and boiling points are not related to the value of n |
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5 | |
Carbon-carbon bonds are typically: |
| | A) | Polar covalent |
| | B) | Ionic |
| | C) | Hydrophobic |
| | D) | Covalent |
| | E) | Electrostatic |
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6 | |
Isomers always have the same |
| | A) | Melting point |
| | B) | Geometry |
| | C) | Boiling points |
| | D) | Molecular formula |
| | E) | Reactivity |
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7 | |
As the molecular weight of an alkane increases the melting point ______: |
| | A) | Stays the same |
| | B) | There is no regular pattern between these properties |
| | C) | Increases |
| | D) | Decreases |
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8 | |
Who was the first to chemically synthesize urea? |
| | A) | Dalton |
| | B) | Avogadro |
| | C) | Wöhler |
| | D) | Berzelius |
| | E) | Pauling |
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9 | |
Unsaturated hydrocarbons: |
| | A) | Contain only carbon-carbon single bonds |
| | B) | Contain at least one carbon-carbon multiple bond |
| | C) | Contain no carbon-carbon multiple bonds |
| | D) | Are formed by the removal of water from saturated hydrocarbons |
| | E) | Are less combustible than saturated hydrocarbons |
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10 | |
Which of the following is isomeric to pentane? |
| | A) | 1-Methylcyclobutane |
| | B) | 2,3-Dimethylbutane |
| | C) | 2,2-Dimethylpropane |
| | D) | 2,2-Dimethylpentane |
| | E) | 1,1-Dimethylcyclopropane |
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