Chem 1020 Final Exam Questions with 100% Verified Correct Answers
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Course
Chem 1020
Institution
Chem 1020
Chem 1020 Final Exam Questions with 100% Verified Correct Answers
what is the most electropositive element? - Correct Answer Li
Which of the following elements has 3 electrons in the valence (outer) shell? - Correct Answer B
Which of the following would you expect to have ionic bonds? - Corr...
Chem 1020 Final Exam Questions with
100% Verified Correct Answers
what is the most electropositive element? - Correct Answer Li
Which of the following elements has 3 electrons in the valence (outer)
shell? - Correct Answer B
Which of the following would you expect to have ionic bonds? - Correct
Answer CsF
Which of the following would you expect to have polar covalent bonds? -
Correct Answer NF3
Which molecule has nonpolar covalent bonds? - Correct Answer N2
the number of electrons in the valence shell of sulfur is? - Correct Answer
6
oxygen is more electronegative than - Correct Answer sulfur
the most electronegative elements in the periodic table are generally
found - Correct Answer toward the right in a horizontal row and toward the
top in a column
for carbon monoxide, O has a formal charge of - Correct Answer +1
what is the formal charge of N in HNO3? - Correct Answer +1
what is the percent s character in an sp2 hybridized orbital? - Correct
Answer 33%
,the maximum number of electrons that a molecular orbital can contain is -
Correct Answer 2
the approximate H-C-H bond able in methane is - Correct Answer 109.5
the lewis structure of methane (sp3) - Correct Answer tetrahedral
acyclic - Correct Answer containing no rings of atoms
heterocyclic - Correct 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? - Correct Answer
propane
which of the following would exhibit hydrogen bonding? - Correct Answer
CH3OH
the more carbons - Correct Answer the higher the boiling point
the boiling points of normal alkanes - Correct 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 - Correct Answer staggered
the least stable conformation of propane is - Correct Answer eclipsed
what is the C-C-C bond angle of cyclobutane? - Correct Answer 90 degrees
benzonitrile - Correct Answer benzene with a 3 (-) N
, What class of organic compounds result when cyclopentanone reacts with
ethylamine in the presence of trace acid? - Correct Answer Imine
what product results from the SN2 reaction between R-2-chloropentane
and hydroxide? - Correct Answer S-2-pentanol
in nucleophilic acyl substitution - Correct Answer addition to the carbonyl
by a nucleophile is followed by loss of the leaving group.
sn2 reactions usually proceed with - Correct Answer complete inversion at
the center undergoing substitution
predict the two most likely mechanisms for the reaction of 2-iodohexane
with sodium ethoxide - Correct Answer SN2 & E2
predict the two most likely mechanisms which occur when 2-iodohexane is
heated in ethanol - Correct Answer E1 and SN1
acetyl chloride undergoes nucleophilic substitution at a faster rate than
methyl acetate because - Correct Answer chloride is a better leaving
group than methoxide
Esters and amides are most easily made by nucleophilic acyl substitution
reactions on ________. - Correct Answer acid chlorides
which reagent could be used in a williamson synthesis of cyclohexyl
methyl ether? - Correct Answer NaH
an amie can react with an acid anhydride to form an amide. the process is
known as - Correct Answer nucleophilic acyl substitution
anisole - Correct Answer methoxybenzene
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