In which of the following diagrams does the dotted line represent a permanent dipole-permanent dipole interaction between propanone molecules?
A
H H
H O H
H C H
B
H H H
H C H
H H H
C
H H H
H O---H
H C H
D
H H H
H O---H
H C H - Scottish Highers Chemistry - Question 16 - 2019
Question 16
In which of the following diagrams does the dotted line represent a permanent dipole-permanent dipole interaction between propanone molecules?
A
H H
H O H
... show full transcript
Worked Solution & Example Answer:In which of the following diagrams does the dotted line represent a permanent dipole-permanent dipole interaction between propanone molecules?
A
H H
H O H
H C H
B
H H H
H C H
H H H
C
H H H
H O---H
H C H
D
H H H
H O---H
H C H - Scottish Highers Chemistry - Question 16 - 2019
Step 1
A
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Answer
In this diagram, the structure does not show a clear permanent dipole-permanent dipole interaction due to the absence of polar bond orientation.
Step 2
B
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Answer
This option represents a symmetrical molecule with no significant polar bonds interacting permanently. Hence, it does not depict a permanent dipole interaction.
Step 3
C
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Answer
While this diagram shows a dotted line, it incorrectly represents how polar interactions would function in propanone because the polarities do not align appropriately for a permanent dipole interaction.
Step 4
D
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Answer
This diagram correctly represents a permanent dipole-permanent dipole interaction. The oxygen atom within the propanone structure creates a polar bond, leading to an overall dipole that can interact with another propanone molecule.
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