CHEM 1020 FINAL EXAM PAPER 2026
COMPLETE QUESTIONS WITH VERIFIED
SOLUTIONS
◉ 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
◉ acetyl chloride undergoes nucleophilic substitution at a faster rate
than methyl acetate because Answer: chloride is a better leaving
group than methoxide
◉ Esters and amides are most easily made by nucleophilic acyl
substitution reactions on ________. Answer: acid chlorides
COMPLETE QUESTIONS WITH VERIFIED
SOLUTIONS
◉ 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
◉ acetyl chloride undergoes nucleophilic substitution at a faster rate
than methyl acetate because Answer: chloride is a better leaving
group than methoxide
◉ Esters and amides are most easily made by nucleophilic acyl
substitution reactions on ________. Answer: acid chlorides
