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Multiple Choice
In which of the following pure compounds would intermolecular hydrogen bonding be expected?
A
CH4
B
CH3OH
C
CCl4
D
CO2
Verified step by step guidance
1
Identify the key requirement for intermolecular hydrogen bonding: it occurs when hydrogen is directly bonded to highly electronegative atoms such as nitrogen (N), oxygen (O), or fluorine (F).
Examine each compound to see if it contains hydrogen atoms bonded to N, O, or F:
For CH4 (methane), hydrogen is bonded to carbon, which is not electronegative enough to create hydrogen bonding.
For CH3OH (methanol), hydrogen is bonded to oxygen, which is highly electronegative, so hydrogen bonding is possible.
For CCl4 (carbon tetrachloride) and CO2 (carbon dioxide), there are no hydrogen atoms bonded to N, O, or F, so hydrogen bonding does not occur.