Chem 103 Exam Questions and
Accurate Detailed Answers
7, 8 - Answer: The complete combustion of 1 mole of 2,2-dimethylpentane produces ________
moles of carbon dioxide and __________ moles of water.
cyclohexane<cyclopentane<cyclobutane<cyclopropane - Answer: Which of the following correctly
ranks the cycloalkanes in order of increasing ring strain?
1,2-dichloroethene - Answer: Of the following alkenes, which one exhibits cic-trans isomerisim?
gas, liquid - Answer: Under ordinary room conditions of temperature (20*C) and pressure (1 atm),
ethylene is a ________ and 2-methylheptane is a _________.
1,2-dibromopropane - Answer: If one mole of Br2 is added to one mole of propene, the product is
________.
H2 - Answer: The missing reactant in the reaction shown is: cyclohexane+ ? Catalyst---> cyclohexane
Toluene - Answer: The octane number of a compound is greater than 100. The compound could be:
Substitution - Answer: Halogenation of methane is best described as a _________ reaction.
3-ethylpentane - Answer: The compound 3-methylhexane is a structural isomer of:
One primary and one is secondary - Answer: Which of the following is true of the alcohol functional
groups in 1,3-butanediol?
2-propanol - Answer: Which of the compounds below is a secondary alcohol with infinite water
solubility?
1-butanol, ethanol, propane, methane - Answer: In which of the groups below do boiling points
decrease from left to right ( highest to lowest)?
Accurate Detailed Answers
7, 8 - Answer: The complete combustion of 1 mole of 2,2-dimethylpentane produces ________
moles of carbon dioxide and __________ moles of water.
cyclohexane<cyclopentane<cyclobutane<cyclopropane - Answer: Which of the following correctly
ranks the cycloalkanes in order of increasing ring strain?
1,2-dichloroethene - Answer: Of the following alkenes, which one exhibits cic-trans isomerisim?
gas, liquid - Answer: Under ordinary room conditions of temperature (20*C) and pressure (1 atm),
ethylene is a ________ and 2-methylheptane is a _________.
1,2-dibromopropane - Answer: If one mole of Br2 is added to one mole of propene, the product is
________.
H2 - Answer: The missing reactant in the reaction shown is: cyclohexane+ ? Catalyst---> cyclohexane
Toluene - Answer: The octane number of a compound is greater than 100. The compound could be:
Substitution - Answer: Halogenation of methane is best described as a _________ reaction.
3-ethylpentane - Answer: The compound 3-methylhexane is a structural isomer of:
One primary and one is secondary - Answer: Which of the following is true of the alcohol functional
groups in 1,3-butanediol?
2-propanol - Answer: Which of the compounds below is a secondary alcohol with infinite water
solubility?
1-butanol, ethanol, propane, methane - Answer: In which of the groups below do boiling points
decrease from left to right ( highest to lowest)?
