Consider the structures of dimethyl ether and ethanol. Which statements explain that the normal boiling point of dimethyl ether is 250 K, whereas the normal boiling point of ethanol is 351 K? I. dimethyl ether has a lower boiling point because it has hydrogen bonding as its predominant IMF II. more energy is needed to overcome the stronger IMF of ethanol III. ethanol has more atoms, so it has stronger London dispersion forces than dimethyl ether 0000 a b с d H H Dimethyl Ether I only I and II only Il only II and III only H H H H -0-H H Ethanol

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Consider the structures of dimethyl ether and ethanol.
Which statements explain that the normal boiling point of
dimethyl ether is 250 K, whereas the normal boiling point of
ethanol is 351 K?
a
b
Od
H
I. dimethyl ether has a lower boiling point because it has hydrogen
bonding as its predominant IMF
II. more energy is needed to overcome the stronger IMF of ethanol
III. ethanol has more atoms, so it has stronger London dispersion forces than dimethyl ether
I only
I and II only
ll only
II and III only
H-C-0-C-H
H
H
Dimethyl Ether
HH
II
H-C-C-O-H
| |
HH
Ethanol
Transcribed Image Text:Consider the structures of dimethyl ether and ethanol. Which statements explain that the normal boiling point of dimethyl ether is 250 K, whereas the normal boiling point of ethanol is 351 K? a b Od H I. dimethyl ether has a lower boiling point because it has hydrogen bonding as its predominant IMF II. more energy is needed to overcome the stronger IMF of ethanol III. ethanol has more atoms, so it has stronger London dispersion forces than dimethyl ether I only I and II only ll only II and III only H-C-0-C-H H H Dimethyl Ether HH II H-C-C-O-H | | HH Ethanol
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