41.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Ethene and ethane molecules have the same geometrical shape.
(2) Two double bonds are present in the compound allyl chloride.
(3) Cis-trans isomerism is possible in both 1-butene and 2-butene.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
42.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) The molecule 1,3-butadiene contains eight hydrogen atoms.
(2) Two carbon rings that share a pair of carbon atoms are said to be fused.
(3) The prefix para- is used to indicate 1,3-disubstitution on a benzene ring.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
43.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Four double bonds are present in 1,6-heptadiyne.
(2) Markovnikov’s rule is needed to predict the major product formed in the reaction between water and 2-butene.
(3) The compound benzene contains both localized and delocalized bonds.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
44.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) The aluminum chloride catalyzed reaction between benzene and ethyl chloride produces chlorobenzene.
(2) The compound 2-methyl-1,3-cyclopentadiene has the molecular formula C6H8.
(3) The biochemical activity of pheromones is highly dependent on whether the carbon-carbon double bonds present are in cis- or trans- configurations.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
45.Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices:
(1) Ethene is both a plant hormone and a high-volume industrial chemical.
(2) Carotenoids, compounds which give odor to flowers and plants, have a system of conjugated double bonds as a structural feature.
(3) The process of vision in the human eye involves changes in which carbon-carbon double bonds are converted to carbon-carbon triple bonds.
a.All three statements are true.
b.Two of the three statements are true.
c.Only one of the statements is true.
d.None of the statements is true.
46.From the response list, select the correct molecular formula for 2,3-dimethyl-2-pentene.
a.C7H8c.C7H12
b.C7H10d.C7H14
47.From the response list, select the correct molecular formula for 1,3-heptadiene.
a.C7H8c.C7H12
b.C7H10d.C7H14
48.From the response list, select the correct molecular formula for 3-heptyne.
a.C7H8c.C7H12
b.C7H10d.C7H14
49.From the response list, select the correct molecular formula for 2-methylcyclohexene.
a.C7H8c.C7H12
b.C7H10d.C7H14
50.From the response list, select the correct molecular formula for toluene.
a.C7H8c.C7H12
b.C7H10d.C7H14
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