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1 | |
The most important force in Chemistry is? |
| | A) | Nuclear |
| | B) | Electrical |
| | C) | Gravitational |
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2 | |
The theory which describes the formation of a bond by the overlap of half-filled atomic orbitals is? |
| | A) | VSEPR Theory |
| | B) | Molecular Orbital Theory |
| | C) | Valence Bond Theory |
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3 | |
A sigma (s) bond is characterized by a high electron density between the atoms, and is cylindrically symmetric about the internuclear axis. |
| | A) | True |
| | B) | False |
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4 | |
Hybridization is? |
| | A) | generated by "mixing" s and p orbitals |
| | B) | an attempt to explain the bonding observed in organic molecules |
| | C) | an attempt to explain the geometry observed in organic molecules |
| | D) | A and B |
| | E) | A and C |
| | F) | all of the above. |
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5 | |
A methylene group is? |
| | A) | A CH4 group |
| | B) | A CH3 group |
| | C) | A CH2 group |
| | D) | A CH group |
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6 | |
A sec-butyl group is? |
| | A) | A (CH3)4C group |
| | B) | A (CH3)3C- group |
| | C) | A (CH3)2CHCH2- group |
| | D) | A CH3CH2CH(CH3)- group |
| | E) | A CH3(CH2)3- group |
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7 | |
Hydrocarbons are found in petroleum, which is a mixture of numerous different types of alkanes, alkenes, and arenes. They are separated by distillation. Which other processes are important in making petroleum more useful? |
| | A) | Cracking |
| | B) | Reforming |
| | C) | Decomposing |
| | D) | A and B |
| | E) | A and C |
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8 | |
The major intermolecular force in alkanes is? |
| | A) | Dipole-dipole forces |
| | B) | Dipole-induced dipole forces |
| | C) | Induced dipole-induced dipole forces |
| | D) | Hydrogen bonding |
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9 | |
Arrange the following compounds according
to the strength of the intermolecular forces.
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| | A) | 1 > 2 > 3 |
| | B) | 1 > 3 > 2 |
| | C) | 2 > 3 > 1 |
| | D) | 2 > 1 > 3 |
| | E) | 3 > 1 > 2 |
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10 | |
The relative stability of a homologous series of alkanes depends on? |
| | A) | Intermolecular forces |
| | B) | Intramolecular forces |
| | C) | The number of carbon atoms in the molecule |
| | D) | The molecular weight |
| | E) | none of the above |
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11 | |
Arrange the following compounds in order of decreasing oxidation state
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| | A) | 1 > 2 > 3 |
| | B) | 1 > 3 > 2 |
| | C) | 2 > 3 > 1 |
| | D) | 2 > 1 > 3 |
| | E) | 3 > 1 > 2 |
| | F) | 3 > 2 > 1 |
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12 | |
The carbon atoms in benzene are?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/337328/2_12.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>]]> |
| | A) | sp4 hybridiz |
| | B) | sp3 hybridiz |
| | C) | sp2 hybridiz |
| | D) | sp hybridiz |
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13 | |
The central carbon atom has what type of hybridization?
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| | A) | sp4 hybridiz |
| | B) | sp3 hybridiz |
| | C) | sp2 hybridiz |
| | D) | sp hybridiz |
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