CHEM219 MODULE 7 2026 COMPREHENSIVE
TEST PAPER QUESTIONS WITH VERIFIED
ANSWERS
◉ What is the relationship between the compounds shown? Are
they the same compound, constitutional isomers, or two different
compounds that are not related to one another? Explain. Answer:
Different compounds that are not related. They have different MF -
(a) C3H8O, (b) C3H6O.
◉ Identify each of the following carbon skeletons as linear
(continuous), branched, or cyclic. Answer: a) Branched
b) Linear (continuous)
c) Cyclic
◉ On a piece of scratch paper, write out structural formulae for all of
the constitutional isomers possible for the MF C3H6F2. How many
isomers are possible for this formula?. Answer: 4
◉ Characterize each of the following structural formula
representations as either a dash, condensed, super-condensed, or
bond-line formula:. Answer: a) Super-Condensed
b) Condensed
, c) Bond-line
d) Dash
◉ Write the molecular formula for each of the compounds whose
bond-line formulae are given below.. Answer: a) C5H10
b) C3H8O
c) C4H10O
◉ Which bond-line formula shown below represents a
constitutional isomer of CH3CH2CH2CH2CH3?. Answer: (b)
◉ Which of the following structures does NOT have the molecular
formula C6H14?. Answer: (d)
◉ The structural formula:
Has what molecular formula?. Answer: (c) C7H14
◉ The compound carbon monoxide has the following structural
formula:
What is the formal charge on the carbon and the oxygen? Show your
calculation. What is the overall charge on the molecule?. Answer:
Carbon = 4-(2+3) = -1
Oxygen = 6-(2+3) = +1
TEST PAPER QUESTIONS WITH VERIFIED
ANSWERS
◉ What is the relationship between the compounds shown? Are
they the same compound, constitutional isomers, or two different
compounds that are not related to one another? Explain. Answer:
Different compounds that are not related. They have different MF -
(a) C3H8O, (b) C3H6O.
◉ Identify each of the following carbon skeletons as linear
(continuous), branched, or cyclic. Answer: a) Branched
b) Linear (continuous)
c) Cyclic
◉ On a piece of scratch paper, write out structural formulae for all of
the constitutional isomers possible for the MF C3H6F2. How many
isomers are possible for this formula?. Answer: 4
◉ Characterize each of the following structural formula
representations as either a dash, condensed, super-condensed, or
bond-line formula:. Answer: a) Super-Condensed
b) Condensed
, c) Bond-line
d) Dash
◉ Write the molecular formula for each of the compounds whose
bond-line formulae are given below.. Answer: a) C5H10
b) C3H8O
c) C4H10O
◉ Which bond-line formula shown below represents a
constitutional isomer of CH3CH2CH2CH2CH3?. Answer: (b)
◉ Which of the following structures does NOT have the molecular
formula C6H14?. Answer: (d)
◉ The structural formula:
Has what molecular formula?. Answer: (c) C7H14
◉ The compound carbon monoxide has the following structural
formula:
What is the formal charge on the carbon and the oxygen? Show your
calculation. What is the overall charge on the molecule?. Answer:
Carbon = 4-(2+3) = -1
Oxygen = 6-(2+3) = +1
