CHEM 1020 MIDTERM ASSESSMENT SCRIPT
2026 ACCURATE QUESTIONS AND
DETAILED SOLUTIONS CERTIFICATION
PREP RESOURCE GRADED A+
⩥which of the following represents an addition reaction?
Answer: HX + C4H8-> C4H9X
⩥select the major product that would result from the reaction below
CH3--CH=CH2+ H2O
Answer: CH3CH(OH)CH3
⩥select the major product that would result from the reaction below
CH3CH2CH=CH2 + HBr
Answer: CH3CHBrCH2CH3
⩥which is the formula for an alkene
Answer: CH3CHCH2
⩥what is the formula for an alkyne
Answer: CH3CH2CCH
,⩥what is a difference between butane and butene
Answer: the presence of a double bond
⩥which is a difference between butene and cyclobutene
Answer: cyclobutene is missing more hydrogens than is butene
⩥which is a difference between butyne and cyclobutyne
Answer: cyclobutyne does not exist
⩥which of the following is the correct IUPAC name for the compound
CH2-C(TRIPLE BOND)C-CH2-CH2-Br
Answer: 5-bromo-2-pentyne
⩥the addition of two moles of hydrogen to an alkyne produces an
Answer: alkene
⩥acetylene is commercially useful as a fuel for torches and as
Answer: a starting material for plastics
⩥what is the characteristic of aromatic compounds that is responsible for
them being named aromatic compounds
, Answer: these compounds contain a benzene ring or structural relative
⩥the benzene ring as a branch is called a __ group
Answer: phenyl
⩥another acceptable name for 1-ethyl-3-methylbenzene is
Answer: m-ethyltoluene
⩥a major source of aromatic compounds is
Answer: coal tar
⩥which of the following is a useful organic solvent
Answer: toluene
⩥naphthalene is used as
Answer: moth repellent
⩥identify the statement about lycopene that is true
Answer: lycopene gives watermelon their red color
⩥which characteristic of alkenes and alkynes, but not a characteristic of
alkanes
2026 ACCURATE QUESTIONS AND
DETAILED SOLUTIONS CERTIFICATION
PREP RESOURCE GRADED A+
⩥which of the following represents an addition reaction?
Answer: HX + C4H8-> C4H9X
⩥select the major product that would result from the reaction below
CH3--CH=CH2+ H2O
Answer: CH3CH(OH)CH3
⩥select the major product that would result from the reaction below
CH3CH2CH=CH2 + HBr
Answer: CH3CHBrCH2CH3
⩥which is the formula for an alkene
Answer: CH3CHCH2
⩥what is the formula for an alkyne
Answer: CH3CH2CCH
,⩥what is a difference between butane and butene
Answer: the presence of a double bond
⩥which is a difference between butene and cyclobutene
Answer: cyclobutene is missing more hydrogens than is butene
⩥which is a difference between butyne and cyclobutyne
Answer: cyclobutyne does not exist
⩥which of the following is the correct IUPAC name for the compound
CH2-C(TRIPLE BOND)C-CH2-CH2-Br
Answer: 5-bromo-2-pentyne
⩥the addition of two moles of hydrogen to an alkyne produces an
Answer: alkene
⩥acetylene is commercially useful as a fuel for torches and as
Answer: a starting material for plastics
⩥what is the characteristic of aromatic compounds that is responsible for
them being named aromatic compounds
, Answer: these compounds contain a benzene ring or structural relative
⩥the benzene ring as a branch is called a __ group
Answer: phenyl
⩥another acceptable name for 1-ethyl-3-methylbenzene is
Answer: m-ethyltoluene
⩥a major source of aromatic compounds is
Answer: coal tar
⩥which of the following is a useful organic solvent
Answer: toluene
⩥naphthalene is used as
Answer: moth repellent
⩥identify the statement about lycopene that is true
Answer: lycopene gives watermelon their red color
⩥which characteristic of alkenes and alkynes, but not a characteristic of
alkanes
