Chem 1020 Final Exam Questions with
All Correct Answers 2025/2026 Edition.
what is the most electropositive element? - Answer Li
Which of the following elements has 3 electrons in the valence (outer) shell? - Answer B
Which of the following would you expect to have ionic bonds? - Answer CsF
Which of the following would you expect to have polar covalent bonds? - Answer NF3
Which molecule has nonpolar covalent bonds? - Answer N2
the number of electrons in the valence shell of sulfur is? - Answer 6
oxygen is more electronegative than - Answer sulfur
the most electronegative elements in the periodic table are generally found - Answer toward
the right in a horizontal row and toward the top in a column
for carbon monoxide, O has a formal charge of - Answer +1
what is the formal charge of N in HNO3? - Answer +1
what is the percent s character in an sp2 hybridized orbital? - Answer 33%
the maximum number of electrons that a molecular orbital can contain is - Answer 2
the approximate H-C-H bond able in methane is - Answer 109.5
the lewis structure of methane (sp3) - Answer tetrahedral
acyclic - Answer containing no rings of atoms
, heterocyclic - Answer ring shaped carbon chain which has to have at least one atom that
isn't carbon in the ring
what is the name of the alkane that has 3 carbon atoms? - Answer propane
which of the following would exhibit hydrogen bonding? - Answer CH3OH
the more carbons - Answer the higher the boiling point
the boiling points of normal alkanes - Answer rise as the length of the carbon chain increases
and are higher than the boiling points of branched alkanes with the same molecular formula
the most stable conformation of propane is - Answer staggered
the least stable conformation of propane is - Answer eclipsed
what is the C-C-C bond angle of cyclobutane? - Answer 90 degrees
benzonitrile - Answer benzene with a 3 (-) N
What class of organic compounds result when cyclopentanone reacts with ethylamine in the
presence of trace acid? - Answer Imine
what product results from the SN2 reaction between R-2-chloropentane and hydroxide? -
Answer S-2-pentanol
in nucleophilic acyl substitution - Answer addition to the carbonyl by a nucleophile is
followed by loss of the leaving group.
sn2 reactions usually proceed with - Answer complete inversion at the center undergoing
substitution
predict the two most likely mechanisms for the reaction of 2-iodohexane with sodium ethoxide
- Answer SN2 & E2
predict the two most likely mechanisms which occur when 2-iodohexane is heated in ethanol -
Answer E1 and SN1
All Correct Answers 2025/2026 Edition.
what is the most electropositive element? - Answer Li
Which of the following elements has 3 electrons in the valence (outer) shell? - Answer B
Which of the following would you expect to have ionic bonds? - Answer CsF
Which of the following would you expect to have polar covalent bonds? - Answer NF3
Which molecule has nonpolar covalent bonds? - Answer N2
the number of electrons in the valence shell of sulfur is? - Answer 6
oxygen is more electronegative than - Answer sulfur
the most electronegative elements in the periodic table are generally found - Answer toward
the right in a horizontal row and toward the top in a column
for carbon monoxide, O has a formal charge of - Answer +1
what is the formal charge of N in HNO3? - Answer +1
what is the percent s character in an sp2 hybridized orbital? - Answer 33%
the maximum number of electrons that a molecular orbital can contain is - Answer 2
the approximate H-C-H bond able in methane is - Answer 109.5
the lewis structure of methane (sp3) - Answer tetrahedral
acyclic - Answer containing no rings of atoms
, heterocyclic - Answer ring shaped carbon chain which has to have at least one atom that
isn't carbon in the ring
what is the name of the alkane that has 3 carbon atoms? - Answer propane
which of the following would exhibit hydrogen bonding? - Answer CH3OH
the more carbons - Answer the higher the boiling point
the boiling points of normal alkanes - Answer rise as the length of the carbon chain increases
and are higher than the boiling points of branched alkanes with the same molecular formula
the most stable conformation of propane is - Answer staggered
the least stable conformation of propane is - Answer eclipsed
what is the C-C-C bond angle of cyclobutane? - Answer 90 degrees
benzonitrile - Answer benzene with a 3 (-) N
What class of organic compounds result when cyclopentanone reacts with ethylamine in the
presence of trace acid? - Answer Imine
what product results from the SN2 reaction between R-2-chloropentane and hydroxide? -
Answer S-2-pentanol
in nucleophilic acyl substitution - Answer addition to the carbonyl by a nucleophile is
followed by loss of the leaving group.
sn2 reactions usually proceed with - Answer complete inversion at the center undergoing
substitution
predict the two most likely mechanisms for the reaction of 2-iodohexane with sodium ethoxide
- Answer SN2 & E2
predict the two most likely mechanisms which occur when 2-iodohexane is heated in ethanol -
Answer E1 and SN1
