CHEM 1020 EXAMINATION TEST 2026
COMPLETE QUESTIONS AND CORRECT
SOLUTIONS
◉ how many hydrogen atoms are present in a cyclic alkane with five
(5) carbon atoms? Answer: 10
◉ asphalt is a mixture of high molecular weight hydrocarbons.
Which solvent would be best for removing asphalt from a newly
paved road off the bottom of a pair of shoes? Answer: octane
◉ which types of compounds are saturated hydrocarbons? Answer:
alkanes
◉ the compounds o-chlorophenol and m-chlorophenol are examples
of Answer: molecules that are structural isomers
◉ what hydrocarbon is most likely to be a gas at room temperature?
Answer: butene
◉ as carbon bonds with atoms of increasingly higher electro-
negativities, the polarity of the bond Answer: increases
, ◉ according to IUPAC convention, alkyl substituents on a
hydrocarbon chain should be listed in which order? Answer:
alphabetical without considering prefixes
◉ what is the best approximation for the bond angles associated
with the geometry of alkenes Answer: 120 degrees
◉ organic compounds that are poorly soluble in water behave that
way because they are Answer: generally nonpolar
◉ a sugar is classified as a D-isomer if the hydroxyl group on the
Answer: chiral carbon farthest from the carbonyl points to the right
◉ when a monosaccharide forms a ring by interaction of one of its
hydroxyl groups with its aldehyde group, the bond is referred to as
a(n) Answer: hemiacetal
◉ ether molecules are polar, but do not form hydrogen bonds with
either molecules because Answer: there is no hydrogen atom
bonded with just one oxygen atom
◉ when a monosaccharide forms a cyclic hemiacetal, the carbon
atom that contained the carbonyl group is identified as the ____
carbon atom because ____ Answer: anomeric; its substituents can
assume an alpha or a beta position
COMPLETE QUESTIONS AND CORRECT
SOLUTIONS
◉ how many hydrogen atoms are present in a cyclic alkane with five
(5) carbon atoms? Answer: 10
◉ asphalt is a mixture of high molecular weight hydrocarbons.
Which solvent would be best for removing asphalt from a newly
paved road off the bottom of a pair of shoes? Answer: octane
◉ which types of compounds are saturated hydrocarbons? Answer:
alkanes
◉ the compounds o-chlorophenol and m-chlorophenol are examples
of Answer: molecules that are structural isomers
◉ what hydrocarbon is most likely to be a gas at room temperature?
Answer: butene
◉ as carbon bonds with atoms of increasingly higher electro-
negativities, the polarity of the bond Answer: increases
, ◉ according to IUPAC convention, alkyl substituents on a
hydrocarbon chain should be listed in which order? Answer:
alphabetical without considering prefixes
◉ what is the best approximation for the bond angles associated
with the geometry of alkenes Answer: 120 degrees
◉ organic compounds that are poorly soluble in water behave that
way because they are Answer: generally nonpolar
◉ a sugar is classified as a D-isomer if the hydroxyl group on the
Answer: chiral carbon farthest from the carbonyl points to the right
◉ when a monosaccharide forms a ring by interaction of one of its
hydroxyl groups with its aldehyde group, the bond is referred to as
a(n) Answer: hemiacetal
◉ ether molecules are polar, but do not form hydrogen bonds with
either molecules because Answer: there is no hydrogen atom
bonded with just one oxygen atom
◉ when a monosaccharide forms a cyclic hemiacetal, the carbon
atom that contained the carbonyl group is identified as the ____
carbon atom because ____ Answer: anomeric; its substituents can
assume an alpha or a beta position
