34. Rank the following alkanes in order of decreasing boiling point, putting the alkane with the highest boiling point first. II II A) I>II > III B) I>III > II C) II > III >I D) III>II >I 35. Rank the following alkanes in order of increasing melting point, putting the alkane with the lowest melting point first. II A) I

Chemistry for Today: General, Organic, and Biochemistry
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Chapter12: Unsaturated Hydrocarbons
Section: Chapter Questions
Problem 12.67E
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answer 35 and 36 please

34. Rank the following alkanes in order of decreasing boiling point, putting the alkane with
the highest boiling point first.
II
II
A) I>II > III B) I>III > II C) II > III >I D) III>II >I
35. Rank the following alkanes in order of increasing melting point, putting the alkane with
the lowest melting point first.
II
A) I<III<II B) I<II<III C) II<III<I D) II<II <I
36. Which of the following statements about the conformations of acyclic alkanes is true?
A) Conformations are the same arrangements of atoms that cannot be interconverted
by rotation about single bonds.
B) In the eclipsed conformation, the C-H bonds on one carbon bisect the H-C-H bond
angle on the adjacent carbon.
C) In the staggered conformation, the C-H bonds on one carbon are directly aligned
with the C-H bonds on the adjacent carbon.
D) Rotating the atoms on one carbon by 60° converts an eclipsed conformation into a
staggered conformation, and vice versa.
Transcribed Image Text:34. Rank the following alkanes in order of decreasing boiling point, putting the alkane with the highest boiling point first. II II A) I>II > III B) I>III > II C) II > III >I D) III>II >I 35. Rank the following alkanes in order of increasing melting point, putting the alkane with the lowest melting point first. II A) I<III<II B) I<II<III C) II<III<I D) II<II <I 36. Which of the following statements about the conformations of acyclic alkanes is true? A) Conformations are the same arrangements of atoms that cannot be interconverted by rotation about single bonds. B) In the eclipsed conformation, the C-H bonds on one carbon bisect the H-C-H bond angle on the adjacent carbon. C) In the staggered conformation, the C-H bonds on one carbon are directly aligned with the C-H bonds on the adjacent carbon. D) Rotating the atoms on one carbon by 60° converts an eclipsed conformation into a staggered conformation, and vice versa.
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